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Journal articles on the topic 'Geodetic work'
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1
Goluk, Victor P., and Denis G. Nazarov. "FEATURES OF GEODECTIC NETWORKS DENSIFICATION ON THE EXAMPLE OF A RAILWAY BRIDGE CROSSING CONSTRUCTION ACROSS THE KERCHEN STRAIT." Interexpo GEO-Siberia 1, no. 1 (July 8, 2020): 93–105. http://dx.doi.org/10.33764/2618-981x-2020-1-1-93-105.
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The geodetic center base for the construction of bridge structures is the basis of all measurement work. Often it is necessary to carry out the densification of the geodetic center base in compliance with the necessary accuracy of recoverable structures. In the process of geodesic control of the construction of a railway bridge on Section No. 3 of the channel between Tuzlinsky Spit and Tuzla Island, difficulties arose in bringing the project to life at all stages of the construction of a structure associated with the low density of geodetic center base points located in the aquatic area. Based on the above the geodesic service of the LLC “Bridge Bureau” carried out work on the concentration of the geodetic center at the construction site of the bridge crossing (the working bridge RM-1 - site No. 3), as well as taking into account: Section 4 of the joint venture 126.13330.2017 "Geodetic works in construction", GOST 21780-2006 "System for ensuring the accuracy of geometrical parameters in construction. Calculation of accuracy ", as well as SP 46.13330.2012" Bridges and pipes." An a priori assessment of the accuracy of the measurement results for each of the methods for monitoring the planning and altitude position of the condensation points was made. A combined approach to densification of the geodetic center base is suggested.
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Kovalenko, L., and V. Yemets. "ENGINEERING AND GEODESIC WORKS AND EXECUTIVE SURVEY INSTALLATION OF BRIDGE STRUCTURES." Municipal economy of cities 1, no. 161 (March 26, 2021): 124–28. http://dx.doi.org/10.33042/2522-1809-2021-1-161-124-128.
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Modern construction of bridge crossings is impossible without engineering and geodetic works. When transferring a project to the terrain, it is necessary to perform measurements in the horizontal and vertical planes with high accuracy. Geodetic works, to secure the design position and dimensions of both the entire sporida and its surrounding parts, to be carried out by procrastination before the construction of the bridge. Geodetic work during the construction of bridges and other structures is a complex of measurements, calculations and constructions on the ground, in which the design placement of structures must be ensured. The purpose of the article is to consider engineering and geodetic works during the construction of a bridge as part of a combined bridge crossing. At the stages of the construction of the bridge, the accuracy of the project is required, which will ensure geodesic work. These include: the breakdown of bridge supports at different stages of their construction, control of the erection of the superstructure and its installation on the support parts. To perform geodetic works such equipment as an electronic total station "Sokkia 630" and a digital level of the brand "Trimble DiNi" were used. The coordinates of the benchmarks were obtained and entered into the plan of the area. To work with them, anchors were driven into the asphalt and soil, photographed and entered into the documentation. On the pillars of the bridge were glued marks for the notch of the device, with a reflective effect. The data of coordinates and heights were entered into the memory of the total station. The method and procedure for geodetic works during the installation of bridge spans depend on their design and materials. At present, the most common methods of superstructures erection include hinged and semi-hinged assembly, assembly on the slipway, assembly on the shore with subsequent thrusting. When installing superstructures, the main tasks of geodetic support are to determine the straightness of the main beams and measure the so-called building lift. In the practice of bridge building, the degree of use of industrial construction methods is growing, that is, the manufacture of individual structural blocks with their subsequent connection at a regular place, which contributes to an increase in labor productivity and the quality of bridges.
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Kubo, Yoshio, and Minoru Sasaki. "Geodetic work by using Satellite Laser Ranging and the Japanese Geodetic Satellite“AJISAI”." Journal of the Japan society of photogrammetry and remote sensing 26, Special1 (1987): 49–60. http://dx.doi.org/10.4287/jsprs.26.special1_49.
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Lösler, Michael, Cornelia Eschelbach, and Stefan Riepl. "A modified approach for automated reference point determination of SLR and VLBI telescopes." tm - Technisches Messen 85, no. 10 (October 25, 2018): 616–26. http://dx.doi.org/10.1515/teme-2018-0053.
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AbstractThe International Terrestrial Reference Frame (ITRF) is derived by combining several space geodetic techniques. Basically, a meaningful combination of the geodesic space techniques is impossible without further geometrical information, i. e. local-ties. Local-tie vectors are defined between the geometrical reference points of space geodetic techniques at co-location stations. These local-ties are introduced during the inter-technique combination process, to overcome the weak physical connection between the space geodetic techniques. In particular, the determination of the reference point of radio telescopes or laser telescopes is a challenging task and requires indirect methods. Moreover, the Global Geodetic Observing System (GGOS) strives for an automated and continued reference point determination with sub-millimeter accuracy, because deviations in local-ties bias global results.This investigation presents a modified approach for automated reference point determination. The new approach extends the prior work of Lösler but evades the synchronization between the terrestrial instrument and the telescope. Thus, synchronization errors are omitted and the technical effort is reduced. A proof of concept was carried out at Geodetic Observatory Wettzell in 2018. Using a high-precision, mobile laser-tracker, the reference point of the Satellite Observing System Wettzell (SOS-W) was derived. An extended version of the in-house developed software package HEIMDALL was employed for a mostly automated data collection. To evaluate the estimated reference point, the derived results are compared with the results of two approved models.
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Kuznecov, Sergei M., Alexey V. Dubrovsky, and Olesya I. Malygina. "ON THE ISSUE OF TECHNICAL REGULATION IN THE FIELD OF GEODESY, CARTOGRAPHY AND SPATIAL DATA." Interexpo GEO-Siberia 3, no. 2 (July 8, 2020): 3–11. http://dx.doi.org/10.33764/2618-981x-2020-3-2-3-11.
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The article deals with the Normative and technical support of cartographic and geodetic works and mandatory and voluntary requirements. A significant amount of technical requirements in the field of geodesy and cartography contain normative legal acts and normative and technical documents that establish norms and rules for performing geodetic and cartographic work, requirements for final products. In retrospect, these requirements were established as mandatory, including documents included in the system of geodetic and cartographic instructions, norms and rules.
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Afonin, Konstantin, and Yulia Trifonova. "DETERMINATION OF GEODESIC LATITUDE BY SPATIAL RIGHT-MUGAL COORDINATES BY USING A DIFFERENTIAL AMENDMENT." Interexpo GEO-Siberia 1, no. 2 (2019): 3–8. http://dx.doi.org/10.33764/2618-981x-2019-1-2-3-8.
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GNSS technologies are currently essential for coordinate support of territories. However, theymakeit possible to obtain spatial rectangular coordinates of the points being determined. While most users need the flat rectangular coordinates of Gauss – Kruger. And these coordinates can be calculated only by geodetic latitudes and longitudes. The special literature describes more than a dozen methods for calculating the geodetic latitude in spatial rectangular coordinates. To solve this problem, usually use any iterative or non-iterative methods. Both those and others have their ad-vantages and disadvantages. In the work applied the third way to solve the problem. It is proposed to calculate and use the differential correction to the initial (approximate) value of the geodesic lati-tude. Received working formulas that implement this idea. A numerical example is given showing the possibility of practical application oftheproposedmethod.
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Brzeziński, Aleksander, Marcin Barlik, Ewa Andrasik, Waldemar Izdebski, Michał Kruczyk, Tomasz Liwosz, Tomasz Olszak, et al. "Geodetic and Geodynamic Studies at Department of Geodesy and Geodetic Astronomy Wut." Reports on Geodesy and Geoinformatics 100, no. 1 (June 1, 2016): 165–200. http://dx.doi.org/10.1515/rgg-2016-0013.
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Abstract The article presents current issues and research work conducted in the Department of Geodesy and Geodetic Astronomy at the Faculty of Geodesy and Cartography at Warsaw University of Technology. It contains the most important directions of research in the fields of physical geodesy, satellite measurement techniques, GNSS meteorology, geodynamic studies, electronic measurement techniques and terrain information systems.
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Ovchinnikova, N. G., and D. A. Medvedkov. "The legal framework for geodetic support of cadastre work." Economy and ecology of territorial educations 4, no. 1 (2020): 66–76. http://dx.doi.org/10.23947/2413-1474-2020-4-1-66-76.
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Stopková, Eva. "Geodetic work at the archaeological site Tell el-Retaba." Geoinformatics FCE CTU 17, no. 2 (August 23, 2018): 65–80. http://dx.doi.org/10.14311/gi.17.2.4.
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The paper summarizes the geodetic contribution for the Slovak team within the joint Polish-Slovak archaeological mission at Tell el-Retaba in Egypt. Surveying work at archaeological excavations is usually influenced by somewhat specific subject of study and extreme conditions, especially at the missions in the developing countries. The case study describes spatial data development according to the archaeological conventions in order to document spatial relationships between the objects in excavated trenches. The long-term sustainability of surveying work at the site has been ensured by detailed metadata recording. Except the trench mapping, Digital Elevation Model has been calculated for the study area and for the north-eastern part of the site, with promising preliminary results for further detection and modelling of archaeological structures. In general, topographic mapping together with modern technologies like Photogrammetry, Satellite Imagery, and Remote Sensing provide valuable data sources for spatial and statistical modelling of the sites; and the results offer a different perspective for the archaeological research.
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Liew, Jeng U., Ami Hassan Md Din, Khairulnizam M Idris, Mohammad Hanif Hamden, Nur Adilla Zulkifli, and Andy Mohd Hairy Ansar. "A New Redefinition of Geodetic and Plane Coordinates on UTM Geodetic Markers." Built Environment Journal 17, no. 3 (December 29, 2020): 9. http://dx.doi.org/10.24191/bej.v17isi.11741.
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The entire Peninsular Malaysia is situated on Sunda Tectonic Plate, which is subjected to motion at a prominent rate. All the geodetic infrastructures, including geodetic markers, benchmarks, Continuous Operating Reference Stations and Cadastral Reference Marks have moved away from their original position, and their existing coordinates are no longer reliable and secure to use. There are 10 geodetic markers around UTM that are subjected to the issue above. This study aims to redefine new geodetic and plane coordinates on UTM geodetic markers. Two units of Trimble NetR9 Geodetic Type Receiver are used to execute 3D GNSS Control Network on geodetic markers as well as Standard Benchmarks. Receiver Independent Exchange data of Continuous Operating Reference Stations and gravimetric geoid of MyGeoid model are retrieved from Department of Survey and Mapping Malaysia. Trimble Business Center, Golden Surfer 8 and StarNet are used as post-processing, geoid interpolation and one-dimensional network adjustment software, respectively. New sets of geodetic and plane coordinates along with orthometric heights are produced for these 10 geodetic markers. Eventually, UTM geodetic markers are tied to Geocentric Datum Malaysia 2000 (2016) and National Geodetic Vertical Datum, providing reliable horizontal and vertical reference for land surveying work to fulfil both industrial and educational purposes.Keywords: Coordinate redefinition, geodetic coordinate, plane coordinate, geodetic marker
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Varfolomeev, A. F., E. A. Kovalenko, V. F. Manukhov, and O. V. Syromyatnikova. "Design works at creating geodetic control grids using GIS-technologies." Geodesy and Cartography 945, no. 3 (April 20, 2019): 20–25. http://dx.doi.org/10.22389/0016-7126-2019-945-3-20-25.
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During the last decades Geodesy and other Earth Sciences have undergone revolutionary changes concerning the use of Global Positioning Systems. Currently, traditional geodetic and topographic technologies are giving way to high-precision, productive and all-weather space systems. In 1995 the Federal Service of Geodesy and Cartography approved “the Concept of transiting topographic and geodetic production to autonomous methods of satellite coordinate definitions”. The transition to new technologies entails restructuring not only the methods of determining the coordinates, but also the stages of pre-design and design work. Currently, there has been intensive penetration of geoinformation technologies into sciences related to the analysis and processing spatially coordinated data, and geodetic data in particular. Specialized software products are developed but they are quite expensive and difficult for mastering. The authors describe the opportunities of using standard geographic information systems (for example, GIS ArcView V. 3.1) in the view of their spatial orientation for the analysis and optimal selection of the points of the initial geodetic framework and effective implementation of the complex of geodetic works, in order to accurately determine the coordinates of the points of the created geodetic reference network.
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Mazurov, B. T. "An algorithm for estimating the vector fields` curl of the earth’s surface motion from geodetic data." Geodesy and Cartography 949, no. 7 (August 20, 2019): 51–56. http://dx.doi.org/10.22389/0016-7126-2019-949-7-51-56.
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According to the changes of geodetic elements (coordinates, heights, directions) after multiple measurements, it is possible to represent the field of geodetic points’ displacement vector. When studying the stress-strain state of the earth’s surface, the vectors obtained can be used not only to calculate the earth’s deformation tensor in the area under study, but also the differential characteristics of the vector field, called divergence and rotor (vortex, curl). The author proposes the way to determinethe rotor according to discrete geodesic observations of displacement vectors on the surface of the surveyed area. The most important continuation of this research work is the method of geodynamic systemsmathematical modeling for predictive purposes. In order to study the complex (nonlinear) geodynamic processes, an appropriate mathematical basis should be chosen. Here the attention is drawn to the attraction of the mathematical foundations of field theory. The variants of the curl definition are proposed – one of the vector fields’ differential characteristics. To assess the characteristics of vector fields when using multiple geodetic measurements, the finite element method can be used. The division of the surveyed area into triangles enables you to determine the characteristics of the deformation after calculating the elements of the strain tensor.
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Božić, Branko. "The importance of geodetic engineering in the engineering-technical fields." Tehnika 75, no. 4 (2020): 289–94. http://dx.doi.org/10.5937/tehnika2003289b.
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The paper deals with the presentation of the valid legal role of geodetic activity in the field of civil engineering in the Republic of Serbia. Permanent diminution of the importance and role of the geodetic profession in practice is pointed out, which can lead to serious consequences and significant material damage to society and the individual. While under previous regulations nothing could be built and put into operation without control by the geodetic profession, with a number of new regulations this phase is neglected or skipped, often relying on visual control. Geodetic control was one of the most important stages without which work could not be started, continued or work permit issued. The assumption is that the motive for this situation lies in the pervasive need to accelerate technological construction procedures with the aim of reaching unrealistic deadlines and creating the idea of greater efficiency of work, contrary to the quality and safety of construction, will be turned out very quickly.
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Trobiš, Janko. "The Local Geodetic Service." Lex localis - Journal of Local Self-Government 6, no. 4 (September 4, 2009): 489–525. http://dx.doi.org/10.4335/63.
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The local geodetic service systematically provides information that is relevant to the implementation of the strategic policies of the sustainable development and rational management of space, municipality environment and wider local communities. It is also important as a public service for supplying data to the professional and interested public in their further work, as well as for providing information at the state level and within the framework of the European integrations.
The paper explains why the institute of the local geodetic service differs in individual local communities. The central part of the paper deals with some additional possibilities of using the services from the area of the local geodetic service. These services can essentially contribute to better political decisions of local communities in making strategically relevant decisions.
Key words: • Slovenia • local self-government • local geodetic service • public infrastructure • spatial planning
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Burak, Kostyantyn O., and Kostiantyn Yarosh. "GEODESY, CARTOGRAPHY, AND AERIAL PHOTOGRAPHY." GEODESY, CARTOGRAPHY, AND AERIAL PHOTOGRAPHY 93,2021, no. 93 (June 23, 2021): 85–93. http://dx.doi.org/10.23939/istcgcap2021.93.085.
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The purpose of this work is to show the prospects and the need to continue work in Ukraine on the creation of anti-aircraft systems and astronomical geodetic leveling (a combination of astronomical and high-precision geometric leveling), using GNSS and instruments that provide accurate measurements of deviations of the temple 0.1 geodynamic landfills and man-made, which create for the construction of a height foundation for the construction and operation of extremely important facilities. The method of achieving the goal is provided by theoretical studies of existing methods of astronomical and geodetic leveling, modern methods of forecasting neotectonic processes, GNSS accuracy and geometric leveling. The main results - the possibility of using astronomical and geodetic leveling in the forecast of catastrophic deformations of the earth's surface, including earthquakes, control of the results of geometric and GNSS leveling.Scientific novelty: recommendations for the use of astronomical and geodetic leveling of specially created profiles on geodynamic landfills for forecasting neotectonic processes, GNSS control and geometric leveling using the geoidal component, the idea of synchronous observations using zenith systems in astronomical and geodetic leveling.
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Mika, Monika. "Proposals for Changes in Surveying-Legal Procedures for the Needs of Cadastre in Poland." Reports on Geodesy and Geoinformatics 102, no. 1 (December 1, 2016): 67–77. http://dx.doi.org/10.1515/rgg-2016-0028.
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Abstract The aim of this paper is to present the need for changes of geodetic-legal procedures for the cadastre and real estate management. This problem was analyzed both in theoretical and practical terms. In order to better present the analyzed technical and legal procedures, a study of several cases of surveying documentation was made. On their example the problems associated with the surveying services were shows and the formal and legal procedures, on the basis of which described surveying works were done were verified. The problem presented is current and valid not only for the comfort of the surveyor's work, but also from the point of view of the structure and modernization of the real estate cadastre, constituting the backbone of the real estate management. The article emphasized the need to unify the databases of state registers and the digitization of the National Geodetic and Cartographic Resources (PZDGiK). Research has shown that despite the continuous changes of legislation, there are still many shortcomings and gaps, which often complicate the surveying works. The surveyor must analyze and verify all materials he uses, including those obtained from the Centre of Geodetic and Cartographic Documentation (ODGiK). The quality of the geodetic and cartographic elaboration depends largely on the work of the Centre of Geodetic and Cartographic Documentation. The need of modernization of the Land and Buildings Registry, which acts as a cadastre in Poland, has been demonstrated. Furthermore, the unification of data used as reference systems both for plane coordinates and elevation has been proposed.
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Mirzoeva, A. E., and A. S. Ovchinnikova. "The features of geodetic maintenance of cadastral activities in the Russian Federation." Geodesy and Cartography 924, no. 6 (July 20, 2017): 49–54. http://dx.doi.org/10.22389/0016-7126-2017-924-6-49-54.
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Today the studying of geodetic maintenance of cadastral activities in the Russian Federation is an extremely important and topical issue at the present stage of development of the interrelation between geodesy and the sphere of land and property relations. The research tasks are to identify problem aspects in the practical geodetic activity, as well as to analyze the role of geodesy for one of the most important areas of its application. Specificity of geodetic support of cadastral works is considered. The methods of determining the coordinates of the characteristic points of the boundaries of land plots and other real estate objects are compared, the main problems of geodetic work for cadastral purposes are formulated, and the direct dependence of land tax and rent on the area of the real estate object is revealed. In this way, the article reflects the importance of surveying for land and real estate management system.
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Dudysheva, Elena V., and Olga V. Solnyshkova. "Hybrid environments for training engineering students the basics of working with geodetic equipment." RUDN Journal of Informatization in Education 17, no. 2 (December 15, 2020): 94–106. http://dx.doi.org/10.22363/2312-8631-2020-17-2-94-106.
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Problem and goal. The article describes an approach to solving the actual problem of identifying effective and approved by students blended learning tools in the initial stages of working with equipment for engineering education courses. The goal of the research was to study the applicability of hybrid environments of simplified configuration for learning work with geodetic equipment based on interactive virtual educational tools and students' mobile devices in the Novosibirsk State University of Architecture and Civil Engineering (Sibstrin). Methodology. A variant of hybrid laboratories with a virtual component and a variable (on-site or mobile) physical component is quite new for pedagogical research. The physical component is important when learning geodetic equipment since stationary devices are studied at university laboratories when portable analogs are used in real geodetic practice. The virtual component of a hybrid environment during initial work with engineering equipment can be represented by a set of multimedia educational tools that simulate the operation of engineering instruments and devices with a high degree of interactivity which available on one online platform for a specific engineering course. Results. The study found that the presented configuration of the hybrid environment is effectively applicable for initial work with geodetic equipment and is approved by students both during laboratory work in an on-site stationary laboratory, as well when using portable equipment and mobile devices in geodetic practice. Conclusion. For the initial stages of training students for working with geodetic equipment, a hybrid learning environment configuration is proposed based on interactive virtual educational tools and mobile devices which is an affordable and functional solution for engineering universities. Virtual e-learning tools can be accumulated on the site with online support for a separate engineering course and supplemented by means of distance interaction and cooperation of the lecturer and students. The hybrid environment can be used for initial training when working in a stationary laboratory or for conducting a professional business game or individual practical tasks on the ground with portable geodetic equipment.
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Mojzeš, Marcel, Pavol Kollár, and Michal Mikolaj. "Estimation of an Effective Young’s Modulus of Elasticity in the Locality of the Gabčíkovo Hydrology Power Plant by Geometric Leveling." Slovak Journal of Civil Engineering 23, no. 1 (March 1, 2015): 33–40. http://dx.doi.org/10.1515/sjce-2015-0005.
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Abstract The Gabčíkovo hydroelectric power plant is located in a complicated geological environment (gravel sub-soil and a high groundwater level). Excavation work started after the withdrawal of water in the autumn of 1984 and lasted until the autumn of 1986. A basic geodetic control network with a special monument was founded before the excavation work began. This network served for the setting-out of the hydroelectric power plant as well as for the control of the excavation work. The repeated geodetic control measurements have been evaluated and presented at many seminars and conferences. Monitoring the horizontal and vertical stability of the geodetic control network during the general site excavation showed significant horizontal and vertical deformations. The paper is focused on an estimation of an effective Young's modulus of elasticity in the area studied.
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Nowak, Edward, Ryszard Malarski, Witold Prószyński, Alicja Sadowska, Marek Woźniak, and Janina Zaczek-Peplinska. "Research and Development Work Carried out by the Chair of Engineering Geodesy and Measurement and Control Systems, Faculty of Geodesy and Cartography WUT – Thematic Scope and Achievements." Reports on Geodesy and Geoinformatics 100, no. 1 (June 1, 2016): 201–19. http://dx.doi.org/10.1515/rgg-2016-0014.
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Abstract Geodetic engineering surveys are an important part of the works carried out by the Faculty of Geodesy and Cartography, Warsaw University of Technology. These works concern measurement techniques as well as advanced result analysis methods applied in precise industrial surveys and in processes controlling object’s behaviour over time. The thematic scope of research realised by Chair of Engineering Geodesy and Control-Measuring Systems shows that article related to geodetic engineering measurements and geodetic monitoring is carried out with high intensity, resulting in technological advancement and implementation of new or improved measurement solutions and methods of measurement result development.
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Julianto, Eko Nugroho, Ispen Safrel, and Arie Taveriyanto. "High Accuracy Geodetic Control Point Measurement Using GPS Geodetic With Static Methods." Jurnal Teknik Sipil dan Perencanaan 20, no. 2 (November 29, 2018): 81–89. http://dx.doi.org/10.15294/jtsp.v20i2.16300.
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Abstract. The quality of the coordinates of the points in a generally horizontal control network will be influenced by many factors, such as the system equipment used for measuring / observation, the network geometry, measurement strategies / observation, as well as data processing strategy implemented. Using development of the GPS satellite system, since 1989, the network provision of horizontal control points in Indonesia generally relies on the GPS satellite observations. One way of measuring geodetic control points with high accuracy is using geodetic GPS. Measurement of geodetic control points required as a control in the execution of the work and as a correction coordinate measurement of the position of a measurement object with a high degree of accuracy (± 1 cm). How many measurement methods that can be done. This research conducted measurement using static method. Static surveys are used to determine the coordinates of the control points are relatively distant from each other as well as order accuracy requires relatively higher. The measurement results obtained coordinate data for point 1 is 6 ° 57 '31.92207 "LS; 109 ° 38 '32.25194 "BT; high (ellipsoid) 34 320 m and point 2 is 6 ° 57 '33.59086 "LS; 109 ° 38 '37.87710 "BT; high (ellipsoid) 36 235 m.
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Ma, C., E. F. Arias, T. M. Eubanks, A. L. Fey, A. M. Gontier, C. S. Jacobs, and O. J. Sovers. "Formation of The International Celestial Reference Frame." Highlights of Astronomy 11, no. 1 (1998): 281–86. http://dx.doi.org/10.1017/s153929960002075x.
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The goal of the work described here is to create the definitive catalogue for the new International Celestial Reference Frame (ICRF) using the best data and methods available at the time the work was done. This work is the joint cooperative effort of a subgroup of the IAU Working Group on Reference Frames which was formed expressly for this purpose in February 1995. The authors of this report constituted the subgroup. A fuller account of this report can be found in the introduction to the ICRF catalog (IERS 1997).The ICRF of 608 sources presented here is based on essentially all the VLBI observations accu-mulated over about 15 years in several worldwide programs. Dual frequency Mark III data have both geodetic and astrometric applications. Most of the data (95% of nearly 2 million observations) were acquired primarily for geodetic purposes. The major geodetic programs include: NASA’s Crustal Dynamics Project/Space Geodesy Program and USNO’s NAVEX sessions for the terrestrial reference frame, as well as IRIS, NAVNET and NEOS sessions for monitoring Earth rotation. The geodetic programs have used the brightest radio sources, gradually concentrating on the most com-pact as sensitivity improved. These geodetic sources were also the foundation of astrometric work because of the large number of observations for the ~150 most commonly used. The astrometric programs which densify the sky include the Radio-Optical Reference Frame sessions done by US Naval Research Laboratory (NRL) and USNO and the space navigation efforts of Jet Propulsion Laboratory (JPL).
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Yakovlev, Vladimir V., and Irina V. Korzhenevskaya. "The Role of Correct Design of Geodetic Works during Erection and Inspection of Complex Metal Structures." Materials Science Forum 931 (September 2018): 692–95. http://dx.doi.org/10.4028/www.scientific.net/msf.931.692.
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The question of the correct planning of geodetic work for the further survey of erected building structures in the process of their exploitation is very acute at the present time. The initial preparatory stage of this process without appropriate professional relationship to it may have a mixed effect to the quality of further work, the analysis of the dynamics of deformation characteristics and the forecasting of their development stages.Therefore, it is the responsibility of surveyors, designers, and teachers to inform all construction organizations the need to compile geodetic works for the unique facilities constructions with mandatory indication of the types and methods of their inspection at the stage of assembly, installation and operation for complete analysis and prediction of deformation processes.
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Nikonov, Anton V. "PECULIARITIES OF PROCUREMENT FOR DETERMINING THE CONTRACTOR OF ENGINEERING AND GEODESIC WORKS." Interexpo GEO-Siberia 1, no. 1 (July 8, 2020): 31–41. http://dx.doi.org/10.33764/2618-981x-2020-1-1-31-41.
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The article describes the difficulties faced by organizations engaged in engineering and geodetic work at power plants, with participation in procurement. It is shown that the majority of procurement participants are representatives of small and medium-sized businesses. The factors affecting the reduction in the price offer are given. It is noted that a decrease in the initial (maximum) price during the procurement procedures varies from 75 to 90%, which cannot but lead to a decrease in the quality of work, and often to falsification of reporting documentation. Conclusions are made on the example of three realized purchases by the definition of the contractor for geodetic work at thermal power plants.
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Górska, Karolina, Zbigniew Muszyński, and Jarosław Rybak. "DISPLACEMENT MONITORING AND SENSITIVITY ANALYSIS IN THE OBSERVATIONAL METHOD." Studia Geotechnica et Mechanica 35, no. 3 (September 1, 2013): 25–43. http://dx.doi.org/10.2478/sgem-2013-0028.
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Abstract This work discusses the fundamentals of designing deep excavation support by means of observational method. The effective tools for optimum designing with the use of the observational method are both inclinometric and geodetic monitoring, which provide data for the systematically updated calibration of the numerical computational model. The analysis included methods for selecting data for the design (by choosing the basic random variables), as well as methods for an on-going verification of the results of numeric calculations (e.g., MES) by way of measuring the structure displacement using geodetic and inclinometric techniques. The presented example shows the sensitivity analysis of the calculation model for a cantilever wall in non-cohesive soil; that analysis makes it possible to select the data to be later subject to calibration. The paper presents the results of measurements of a sheet pile wall displacement, carried out by means of inclinometric method and, simultaneously, two geodetic methods, successively with the deepening of the excavation. This work includes also critical comments regarding the usefulness of the obtained data, as well as practical aspects of taking measurement in the conditions of on-going construction works.
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Azarov, B. F. "EXPERIENCE OF USING GLS-1500 SCANNER IN ENGINEERING-GEODETIC SURVEYING OF ROADS." Engineering survey 13, no. 2 (September 4, 2019): 26–34. http://dx.doi.org/10.25296/1997-8650-2019-13-2-26-34.
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Abstract: modern geodetic technologies allow us to quickly obtain relevant, precise and reliable geospatial data. An example of such a technology is ground-based laser scanning. Currently, this technology is actively used in the performance of engineering and geodetic surveys of roads. The devices and software of different companies are used, differing in their accuracy characteristics and functionality. The article focuses on the experience of the use of GLS-1500 ground-based laser scanner produced by TOPCON and ScanMaster ground-based laser scanning data processing software for engineering and geodetic surveys in order to repair nine sections of the Federal highway R-256 "Chuysky tract" with a total length of over than 100 km. The article also describes the options used for registration of scanning data, the features of their use depending on the availability of geodetic control on the object. The order of processing the results of ground-based laser scanning using ScanMaster software is considered. According to the results of field work on ground-based laser scanning of nine sections of the R-256 highway, the time and accuracy of scanning data were estimated. The method of estimation of time spent on scanning works is also described. The issue of evaluating the accuracy of obtaining the scan data in the ScanMaster software is considered. It is noted that the accuracy of the geodetic reference, thus, the accuracy of the absolute orientation of the scans can be estimated by the differences between the coordinates of the marks that were scanned from the location of the device and calculated by ScanMaster software, and their specified values obtained from the equalization of the geodetic control. In conclusion, it is stated that the optimal time and accuracy of scanning with GLS-1500 device are achieved by using the geodetic reference of the scans by the inverse length-angle intersection at two points of the geodetic control.
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Khayitov, Kholmurod, and Nilufar Avilova. "Scientific and practical substantiation of geodetic and topographic works using GIS software in the design of hydraulic structures." E3S Web of Conferences 284 (2021): 02006. http://dx.doi.org/10.1051/e3sconf/202128402006.
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In this article, the scientific and practical basis of geodetic and topographic work in the design of hydraulic structures and solutions intended to improve them using GIS (Geoinformation Systems) were analysed. Geodetic and topographic works are the basis for the design, construction and reconstruction of hydraulic structures in Uzbekistan. A systematic approach to the analysis of geodetic and topographic works in the design of hydraulic structures was chosen, which was used to determine the essence of the processes and laws of scientific substantiation of projects of various hydraulic structures. The geological and topographic works were carried out to monitor the condition of the Karshi main canal, and besides, several other irrigation canals in the Kashkadarya region of the Republic of Uzbekistan were studied. The main task of the Karshi main canal is to supply water to various industries, offices, institutions and irrigation canals. After taking the horizontal and vertical topographic data of the Hisorak Reservoir and processing it using the Global Mapper software, a 3D dimensional model of the Hisorak Reservoir was created.
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Karastergiou, A., M. Kramer, N. Wex, and A. von Hoensbroech. "Geodetic Precession and the Binary Pulsar B1913+16." International Astronomical Union Colloquium 177 (2000): 125–26. http://dx.doi.org/10.1017/s0252921100059236.
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AbstractA change of the component separation in the profiles of the binary pulsar PSR B1913+16 has been observed for the first time (Kramer 1998) as expected by geodetic precession. In this work we extend the previous work by accounting for recent data from the Effelsberg 100-m telescope and Arecibo Observatory and testing model predictions. We demonstrate how the new information will provide additional information on the solutions of the system geometry.
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Zhivotov, Dmitry, and Olga Pastukh. "Construction of geodesic domes made of wood and composite materials during restoration and conservation of cultural heritage objects." E3S Web of Conferences 164 (2020): 02020. http://dx.doi.org/10.1051/e3sconf/202016402020.
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The paper provides an overview of the existing structural and technological solutions for the construction of outdoor shelters over cultural heritage objects during restoration works in order to preserve from environmental influences and prevent external precipitation from entering buildings and structures. For these purposes, it is proposed to use standard solutions for various spans in the form of geodetic dome structures to protect buildings and structures from external precipitation and other atmospheric phenomena. The paper highlights the authors' work on the creation of new technical solutions for geodesic domes made of wood and high-strength polymers, which will significantly facilitate load-bearing structures, compared to metal and reinforced concrete. Also, the use of modern materials and technologies for the construction of protective structures will allow taking care of the environment, taking into account GREEN and ZOOM standards.
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Goluk, Victor P., and Denis G. Nazarov. "INTEGRATED APPROACH TO THE GEODESIC CONTROL OF THE INSTALLATION OF ASPHALT-CONCRETE COATING ON THE EXAMPLE OF THE CONSTRUCTION OF THE ROAD BRIDGE TRANSITION ACROSS THE KERCH SHEET." Interexpo GEO-Siberia 1, no. 1 (July 8, 2020): 106–19. http://dx.doi.org/10.33764/2618-981x-2020-1-1-106-119.
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During the construction of bridges, special attention is paid to geometric parameters, one of the most important parameters of the rideable bed is the evenness of the bases and coatings. Geodetic works provide an integrated approach to solving the problem of controlling the flatness of the base layers, which includes: geodetic survey of the rideable canvas, verification of working documentation, control of the copying string, geometric control of the evenness of the laid asphalt concrete floor slab for the steel concrete span and bridge deck for a metal span structure. Various options for controlling the height position of a copier string and a laid asphalt concrete pavement (using trigonometric and geometric leveling) were reviewed and tested. A priori assessment of the accuracy of the measurement results for each of the methods for monitoring algebraic difference of elevations (amplitudes) was previously performed. The article proposes a combined approach to geodetic control at all stages of work on checking the evenness of the asphalt concrete pavement.
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Salamatina, Yu M., and S. I. Kuzikov. "RESEARCH OF POSITIONING ACCURACY BASED ON PHOTOGRAMMETRY." Herald of KSUCTA n a N Isanov, no. 1-2020 (April 6, 2020): 73–79. http://dx.doi.org/10.35803/1694-5298.2020.1.73-79.
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The methods of ground and space geodesy allow to determine with millimeter accuracy the position of separate geodetic points on the Earth's surface. The hardware and software of the photogrammetry method make it possible to build a 3D digital model of the observed geodetic area. The purpose of this work is to compare and evaluate the accuracy of relative positioning using geodesy and photogrammetry methods within the Bishkek geodynamic area.
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Sharafutdinova, A. A., and M. J. Bryn. "On the accuracy requirements of terrestrial laser scanning for solving engineering and geodetic tasks using BIM." Geodesy and Cartography 974, no. 8 (September 20, 2021): 2–12. http://dx.doi.org/10.22389/0016-7126-2021-974-8-2-12.
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Terrestrial laser scanning and digital information modeling are increasingly practiced every year to solve application tasks at various stages of the industrial facility’s life cycle. In this regard, the task of formulating the requirements for the accuracy of performing terrestrial laser scanning for the subsequent forming digital information models becomes more and more calling. In this article we analyzed the types of engineering and geodetic works by which engineering tasks are solved at various stages of the industrial facility’s life cycle in order to create an accuracy requirement. An analysis of the regulatory and technical documentation that specifies doing these works was also made. Basing on it, the relationship between the measurement accuracy characteristics specified in the regulatory and technical documentation (design, construction and operational) and the mean square errors in determining the position of points is described. The authors propose a scheme for transition from the characteristics of the measurements accuracy to the mean square errors of determining the position of points for each type of engineering and geodetic work. The results of this study can be used at planning terrestrial laser scanning of industrial facilities. Basing on the above requirements for the accuracy of the geodetic work, it is possible to formulate a methodology for carrying out each stage of the TLS technological scheme.
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Haug, Torborg, Cecilie Rolstad, Hallgeir Elvehøy, Miriam Jackson, and Ivar Maalen-Johansen. "Geodetic mass balance of the western Svartisen ice cap, Norway, in the periods 1968–1985 and 1985–2002." Annals of Glaciology 50, no. 50 (2009): 119–25. http://dx.doi.org/10.3189/172756409787769528.
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AbstractThe geodetic mass balance of the western Svartisen ice cap in northern Norway is determined, in this work, from photogrammetry on vertical aerial photographs taken in 1968, 1985 and 2002. The existing 1968 digital terrain model (DTM) was generated using analogue photogrammetry, and the 1985 and 2002 DTMs are newly generated using digital photogrammetry. The geodetic mass balance for 1968–85 is –2.6±0.8mw.e., and for 1985–2002 it is –2.0±1.6mw.e. The area of western Svartisen decreased from 190 km2 in 1968, to 187 km2 in 1985 and to 184 km2 in 2002. The outlet glacier Flatisen in the southeast retreated 1700 m over the two periods. The geodetic mass balance is also determined for Engabreen drainage basin, as –2.1±0.9mw.e. for the first period, and –0.3±2.4mw.e. for the second. The results for Engabreen are compared to traditional mass balances, and the large deviations cannot be explained from uncertainties determined for the geodetic method. The assessed errors contributing to the uncertainty in the geodetic mass balance are elevation errors, uncertainties from the applied melt correction, and the use of Sorge’s law, assuming constant snow thickness and density.
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Trevoho, Ihor, Valery Riabchii, and Vladyslav Riabchii. "Research of Compatibility and Systemity of Land Management Terminology." Baltic Surveying 9 (December 5, 2018): 63–68. http://dx.doi.org/10.22616/j.balticsurveying.2018.020.
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The analysis results of common terms in land management and their interpretations in normative-legal acts of Ukraine are presented. It have been established collisions and significant differences in the wording of even such common terms as a land parcel, a boundary of land parcel, a size of land parcel, etc. The purpose of the study is to identify collisions and contradictions of some key terms used in land surveying and geodetic works, as well as development of concrete proposals for improving and perfection the relevant terms. For this purpose, the following tasks were set and solved: analysis of regulatory legal acts of Ukraine concerning the conceptual apparatus of land management, systematization and generalization of substantiation results of the relevant terms correction need, development of proposals taking into account works content on land management and geodetic works for information provision of the State Land Cadastre. In the course of the study, the comparative method of analysis and the systematization of inconsistencies in the current normative legal acts of Ukraine regarding the terms and their interpretation are used. During the proposals development, known approaches "from general to partial" and vice versa were used. The established disadvantages do not allow unambiguously interpreting and performing such important work as geodetic setting or restoration of the land parcels boundaries, resolution of land disputes between adjacent users of land parcels. Completed summaries of content and wording of the relevant terms justify a need for correction of the terms and additions to their definitions. It was set the features of each term. As a result of integrated approach to solution of the existing problem and systematization of established differences, the general wording and detailed specification of the analyzed terms interpretations are proposed. Knowledge of technological stages for geodetic and land management works provided an opportunity to improve the geodetic information support of the State Land Cadastre. The proposals for correction of the studied terms eliminate existing contradictions, provide an unambiguous interpretation of land management terminology, which leads to the exact execution of geodetic and land management works, and, accordingly, obtaining reliable information for the State Land Cadastre.
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Kampczyk, Arkadiusz. "Measurement of the geometric conditions of the visibility of the level railroad crossing." Transportation Overview - Przeglad Komunikacyjny 2017, no. 8 (August 1, 2017): 1–11. http://dx.doi.org/10.35117/a_eng_17_08_01.
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The article discusses the issues related to the visibility conditions of level railroad crossing - taking into account the author's measurements. The results of the work on the geometric visibility conditions were obtained with the use of the manual adapters used to mount the geodetic prisms on the manual or digital gauges. The measurements also used a magnetic-measuring device with a disc. The technical and operational documentation of a railway / road crossing or passage, called the rail / road crossing / passage meter, requires geodetic and diagnostic work. Obligatory preparation of this documentation leads to improvement of its quality and uniformity throughout the country. The article presents author's observations and conclusions. This work was performed within the statutory audit of AGH US 11.11.150.005.
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Poberezhny, Anatoliy A. "DISADVANTAGES OF HEIGHT ACCURACY REGULATION IN SP 121.13330.2019 "AERODROMES", ACTUALIZED EDITION SNiP 32-03–96." Vestnik SSUGT (Siberian State University of Geosystems and Technologies) 26, no. 1 (2021): 38–44. http://dx.doi.org/10.33764/2411-1759-2021-26-1-38-44.
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Based on the requirements of the current regulatory and technical documents governing the ful-fillment of engineering and geodetic surveys for construction, the disadvantages of standardizing the accuracy of heights in SP 121.13330.2019 "Aerodromes", actualized edition SNiP 32-03–96 are con-sidered. Attention is drawn to the ambiguity of the given norms for the accuracy of heights, which leads to their free interpretation when calculating the accuracy of the alignment base, the internal alignment network, layout work, and control geodetic measurements. Doubts are expressed to their validity. To illustrate the application of the established accuracy standards, there is given an example of calculating the accuracy of high-altitude layout works and control geodetic measurements, internal high-altitude layout networks and a grid base when constructing structural layers of artificial founda-tions and aerodrome coatings using the "negligible influence" method and taking into account the ac-curacy of technological processes. Here are suggestions on improving the quality of standardization of the accuracy of heights for the construction of airdromes.
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Nikonov, A. V. "On the matter of updating the Set of Rules SP 126.13330.2017 “Geodetic works in construction”." Geodesy and Cartography 946, no. 4 (May 20, 2019): 9–19. http://dx.doi.org/10.22389/0016-7126-2019-946-4-9-19.
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At the end of 2009, Federal Law No 384 “Technical Regulations on the Safety of Buildings and Structures” was adopted, recognizing building codes and regulations approved before the day the law came into force, as a set of rules. In accordance with the law the authorized executive authorities were obliged to have updated the set of rules by July 1, 2012. As a result, among others, the regulations SNiP 3.01.03–84 “Geodetic works in construction” were updated, which was designated as SP 126.13330.2012. The set of rules contained many inaccurate theses and was negatively met by professional community. After five years, the set of rules was revised, and since April 25, 2018, the set of rules SP 126.13330.2017 “Geodetic works in construction” is put into effect by the Ministry of Construction. The author presents the result of the new standard’s provisions analysis in the field of construction geodesy. The analysis revealed wrong requirements for the accuracy of geodetic work at different stages of construction, and indicated terminological inaccuracies. There is a need to revise the set of rules and arrange a broad discussion of its theses.
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Manandhar, Niraj. "Study of Geodetic datum of Nepal, China and Pakistan and its transformation to World Geodetic System." Journal on Geoinformatics, Nepal 10 (June 30, 2011): 30–35. http://dx.doi.org/10.3126/njg.v10i0.23190.
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There are many government, non-government and International organizations dealing in compilation of database or electronic maps with data from different sources often becomes necessary to transform from one coordinate system to another in order to work within a single unifying framework.
The significance of the study of the coordinate system of China, Pakistan, Nepal will benefit many researchers working in various disciplines and using geographic information system a part of their research. The use of remotely sensed data for environmental studies, disaster related matters and many more has widely been in use due to the availability of high resolution satellite images but it requires to have a relationship between the satellite images and ground location called geo-referencing. To establish this relationship the understating of the coordinate system is needed and also integrating to the national grid of the particular country if required then further knowledge of the parameters of datum chosen by the particular country will be a must. This paper illustrates some findings of the coordinate system of this region.
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Ustavitch, Georgy, Andrey Ivanov, and Natalya Romaneskul. "FEATURES OF THE USE OF DIGITAL EQUIPMENT IN GEODESIC SURVEY OF LINEAR OBJECTS." Interexpo GEO-Siberia 1, no. 1 (2019): 212–16. http://dx.doi.org/10.33764/2618-981x-2019-1-1-212-216.
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Bubir, Elizaveta, and Elena Gienko. "REVIEW OF GEODESIC METHODS FOR THE STUDY OF ASTROARCHAEOLOGICAL MONUMENTS IN NORTHERN KHAKASSIA (ROW OF SUNDUKI)." Interexpo GEO-Siberia 6, no. 1 (2019): 161–66. http://dx.doi.org/10.33764/2618-981x-2019-6-1-161-166.
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The article briefly describes main geodetic methods of research astroarchaeological sites in Northern Khakassia (row of Sunduki), presents new research methods and presents the results of the work done.
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CÎRDEI, Alexandra Nadia, and Dumitru ONOSE. "Bridge Dynamic Displacement Monitoring Using Geodetic Measurement." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture 76, no. 1 (June 12, 2019): 25. http://dx.doi.org/10.15835/buasvmcn-hort:2018.0027.
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The paper analyzes the possibility to define a dynamic model associated to a bridge using the results of geodetic measurements made for displacement monitoring using modern calculation models. Combining the results obtained with two modern calculation models (Finite Element Method and Kalman Filter) we can define a complex model, able of meeting current risk management requirements. The paper aims to highlight the importance and usefulness of realizing the dynamic model of a bridge in order to test hypotheses regarding limit situations such as: testing the structure response in case of a flood or in the event of a major earthquake, determining the maximum admissible weight on the bridge without requiring interventions, determining the areas where the bridge requires consolidation work after a certain period of time or after natural phenomena etc.
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Rogova, Nina. "Geodetic work during implementation of environmental protection measures for the remediation of oil-contaminated lands." E3S Web of Conferences 157 (2020): 02024. http://dx.doi.org/10.1051/e3sconf/202015702024.
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At the present level, the production, transportation and primary processing of oil products is associated with the problem of environmental pollution. The ingress of oil products into the natural environment leads to negative consequences and requires the enterprise to incur additional costs to eliminate the emergency situation and to take environmental protection measures to restore oil-contaminated territories. To restore contaminated territories on the basis of field surveys, which are based on geodetic work, remediation projects are developed. Remediation is carried out on the basis of a project, the reliability of which is taken into account during field geodetic work on determining the site area. In the course of the calculations, it was found that the use of tacheometric survey can significantly increase the cost of field work. In most cases, to ensure the development of a remediation project, it is enough to use domestic GPS receivers. The use of this class of devices will reduce both the timing of field work and their cost. It should be borne in mind that the accuracy of domestic GPS receivers allows using them in determining sites with an area of more than 0.5 ha.
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Fadda, S., M. Fiori, and C. Matzuzzi. "Use of Global Positioning System in mine landscaping and visual impact assessment: A case study." Journal of Nepal Geological Society 34 (October 9, 2006): 129–34. http://dx.doi.org/10.3126/jngs.v34i0.31887.
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The satellite-based Global Positioning System (GPS) needs a clear view of sky for determining a geodetic position and hence it is particularly suitable in overall projects of open-pit recovery and landscape restoration. The purpose of such measurements is to make highly accurate topographic maps thus forming the backbone of a project. In the work presented here geodetic measurements are combined with advanced visualisation techniques and GIS applications in a possible recovery plan of the abandoned excavations of Bonucoro in the mining district of Orani, central Sardinia, Italy. Considering the naturalistic and geographic settings of the mining area and its surroundings, a few proposals concerning the re-utilisation of these excavations are presented. The preparatory work consisted of the area characterisation by carrying out a topographic survey followed by a geodetic control network establishment by the GPS to describe the morphological features of the landscape and for the subsequent three-dimensional analysis and geoprocessing. The final step involved the use of VueInfinite, a computer program capable to integrate graphical data with geological and morphological attributes. It was also able to create a virtual 3D scene of a present, past, or future landscape required for visual impact assessment.
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TREVOHO, I., P. TKACHUK, S. SAVCHUK, B. CHETVERIKOV, and O. VANCHURA. "Anniversary XXV ISTC “Geoforum”." Modern achievements of geodesic science and industry 42, no. II (September 1, 2021): 5–10. http://dx.doi.org/10.33841/1819-1339-2-42-5-10.
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The main events in the work of the XXV anniversary International Scientific and Technical Conference “Geoforum”, which took place on June 9–11, 2021 in Lviv – Bryukhovychi – Yavoriv, are covered. Preparation and holding of the conference, grand opening, work of plenary sessions, scientific sections and presentations, a powerful exhibition of new technologies and equipment, unique measuring systems, software products, etc. are considered. The state and prospects of development of geodetic, topographic, cartographic and cadastral works are estimated.
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Ибрагимова, Э. И., И. Г. Гайрабеков, and А. Т. Мишиева. "PRODUCTION EXPERIENCE OF JOINT APPLICATION OF ELECTRON TACHETOMETRY METHOD AND SATELLITE RECEIVERS." Вестник ГГНТУ. Технические науки, no. 1(19) (April 15, 2020): 42–47. http://dx.doi.org/10.34708/gstou.2020.19.1.006.
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В процессе проведения реконструкций зданий инженерно-геодезические изыскания дают возможность получить всю необходимую информацию о рельефе земной поверхности и построенных объектах на участке проектирования. Условия выполнения работ и объем изысканий обуславливают структуру изыскательских подразделений. На данные параметры оказывают свое влияние сложность проектирования и строительство исследуемого объекта, поэтому они должны быть отражены в программе изыскательских работ. В данной статье представлен производственный опыт совместного применения метода электронной тахеометрии и спутниковых приемников. Полученная в ходе топографической съемки, входящей в состав инженерно-геодезических изысканий, информация может быть использована в качестве базы для дальнейшего исследования, проектирования и проведения строительных работ. In the process of reconstructing buildings, engineering and geodetic surveys make it possible to obtain all the necessary information about the relief of the earth’s surface and constructed objects on the design site. The terms of the work and the volume of research determine the structure of the survey units. These parameters are influenced by the complexity of the design and construction of the object under study, so they should be reflected in the program of survey work. In this article, while conducting engineering and geodetic surveys for the purpose of designing the reconstruction of the laboratory building, field and office work was carried out, and a topographic plan of the object was drawn up. The information obtained during the topographic survey, which is part of the engineering and geodetic surveys, is used as a basis for further research, design and construction work.
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Visirov, Yu V. "Creation of linear-angular constructions in a closed area using satellite geodetic equipment." Geodesy and Cartography 960, no. 6 (July 20, 2020): 13–19. http://dx.doi.org/10.22389/0016-7126-2020-960-6-13-19.
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Invisibility between points can occur due to dense building location, terrain irregularities, intensive construction, and under polar night conditions. Forest thickets (the distance between the trunks up to 5 m, the closeness of the crowns start at 0,5 m) and undergrowth require cutting and clearing glades; terrain elevations, dense building setting, traffic flows and construction machines complicate the development of geodetic reference networks, the implementation of detailed surveys and construction layout. In the absence of visibility when the sides of the geodetic network make 200–500 m, it is recommended that two or more GPS receivers should work simultaneously under the same weather conditions, which compensates for errors at receiving radio signals, except for multipath and noise. With synchronous operation of the receivers, accurate coordinates and orientations for the upcoming electronic geodetic surveys are at mutually visible neighboring points obtained even without post-processing. Simultaneous GPS measurements enable finding the distance between them and horizontal angles in a closed area over the nearest points of the base and moving antennas in the building network for geodetic planning justification of detailed surveys and construction layout.
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TREVOHO, I., A. DRBAL, E. ILKIV, and M. GALYARNYK. "Research of technical characteristics of wall leveling signs in the context of the ethymology of terms." Modern achievements of geodesic science and industry 41, no. I (April 1, 2021): 55–60. http://dx.doi.org/10.33841/1819-1339-1-41-55-60.
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The aim is to clarify the etymology of the terms “wall leveling mark” and “wall leveling benchmark” in the context of the historical sequence of the appearance of leveling networks in the Ukrainian lands to present the author’s view on these definitions in scientific reference and encyclopedic geodetic literature. To conduct a chronological study of the phenomenon of leveling wall signs of different structures and the corresponding technologies of binding to them in leveling networks, which were created in the Ukrainian lands during the XIX–XXI centuries. Pay attention to the fact that level marks and wall frames, which are valid (working) independent geodetic signs in leveling networks, due to long-term operation are carriers of important geodetic information. Method. To study the results of the analysis of historical sources, standards, reference, encyclopedic and scientific literature in the context of the analysis of the definitions of “level mark” and “wall benchmark” was used analysis of patterns of functioning of the relevant geodetic terminological units. Results. On the territory of Ukraine during the XIX–XXI centuries. Created a leveling (height) network [State Geodetic Network, experimental operation], which operates to this day. The functioning of the leveling (height) network is regulated by legislative acts and regulations. Thanks to the geo-portal of the DGM of Ukraine created by NDIGK, it is possible to obtain information about the preserved level signs. The peculiarity of the leveling (height) network is that it was created by different departments of different countries [Glushkov V.V., 2003] with different height systems and taking into account the access of Ukrainian lands to the Black Sea. All this led to the use of different designs of wall leveling signs and, accordingly, their interpretation, which is not sufficiently reflected in the geodetic reference and regulatory literature. Scientific novelty. The performed comprehensive analysis of information sources can serve as a basis for development of scientific and technical recommendations formonitoring of level signs ofDGMofUkraine and will allow to reveal weaknesses of their functioning which are caused by changes in vital activity of the city environment. The practical value of the work is to solve the problem of distinguishing the production characteristics of the wall leveling mark and wall leveling benchmark, which are fixed leveling signs in geodetic networks of thickening and leveling networks to develop technical developments for inspection and updating points II, leveling networks classes and geodetic networks of thickening in the context of monitoring of geodetic points of DGM of Ukraine and their corresponding representation in the scientific and reference geodetic literature.
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Musiienko, I., L. Kazachenko, and E. Zaharova. "ANALYSIS OF GOOGLE EARTH ALTITUDE ERRORS FOR USE IN GEODESIC WORKS." Municipal economy of cities 3, no. 163 (June 29, 2021): 47–51. http://dx.doi.org/10.33042/2522-1809-2021-3-163-47-51.
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The Google Earth service is an information system with extensive functionality used in the Internet, for mobile devices and for desktop computers. The system is a "virtual globe" built on pooled photographs with the addition of spatial information provided by Alphabet Inc in the coordinate system - WGS 84 and the universal cross-section of Mercator. In the system there is an opportunity to lay a line of a route, to receive a longitudinal profile of this line with marks and a slope. However, the question of the accuracy of spatial information remains. The answer to this question will highlight a range of engineering, geodetic and design tasks that can be solved with this service. The article considers this problem from the analysis of height errors. The accuracy of Google Earth's spatial information can be assessed by comparing it to a geodetic reference object. As such object in this work the data of adjustment of the design documentation for construction of the highway bypassing Novy Bug (the second turn) in the Nikolaev area are taken. In the first stage, a "reference" object has been considered, for which there are spatial data obtained by geodetic methods of a given accuracy. In the second stage, the Google Earth system built a road route and a longitudinal profile. At the third stage the received information was systematized and analyzed. In this work, the accuracy of construction of the longitudinal profile by geodetic methods was reduced due to the construction of a black line of the longitudinal profile through a digital terrain model, and hence due to the standard errors of Delaunay triangulation. When using geometric leveling data, the compatibility of the two longitudinal profiles will increase. With careful preparation of the original data, you can achieve meter accuracy in height. Representation of the Earth's surface with such accuracy can be used in solving many engineering problems: variant design of linear structures, preliminary feasibility study of design solutions and more. In the future, we must to assess the horizontal errors.
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Kowacka, Magdalena, Dariusz Skorupka, Artur Duchaczek, and Paweł Zagrodnik. "Identification of geodetic risk factors occurring at the construction project preparation stage." Open Engineering 9, no. 1 (January 31, 2019): 14–17. http://dx.doi.org/10.1515/eng-2019-0002.
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AbstractThe work contains information on the implementation of surveying works in the road construction process. The aim of the research was to identify geodetic risk factors occurring at the stage of preparation of a construction project, the presence of which can greatly disrupt the undertaking such as the road construction. The research was carried out on the basis of expert knowledge, documentation obtained from various road construction projects and the analysis of disturbances at the initial stage of works.
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Xie, Rui, and Xiao Qiang Liu. "Design and Research of Coalfield Geodetic Survey Control Point Result Information Management System Based on GIS." Applied Mechanics and Materials 170-173 (May 2012): 2811–14. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2811.
Full textAbstract:
Coalfield control survey results are work foundation of coalfield construction and whole engineering surveying and initial data of coalfield-exploration surveying and mapping. Digital information management system is an inevitable trend to coalfield control-survey data digital management. The paper introduced the design of information management system of control point results in coalfield geodetic survey based on GIS. It contained the system architecture, function module, safety management module and others. The realization of the system can make standardized management, information processing and sharing, and security of coalfield geodetic survey results effective improvement. It has an important meaning and strong practical value.