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Relevant bibliographies by topics / Blasting

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Academic literature on the topic 'Blasting'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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Journal articles on the topic "Blasting"

1

Brahimaj, Frashër, Izet Zeqiri, Risto Dambov, and Shkurte Brahimaj. "IMPACT OF DRILLING ANGLE ON BLASTING COSTS IN SURFACE WORKS." Rudarsko-geološko-naftni zbornik 37, no. 4 (2022): 71–81. http://dx.doi.org/10.17794/rgn.2022.4.6.

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The removal of rock masses or their use with surface exploitation requires that this work be done at the lowest possible cost. The reduction of operating costs is done by analyzing each work action, working method, and the possibility of changing them, to have an impact on reducing costs. The drilling angle is one of the most important factors during surface exploitation by blasting. By changing the drilling angle, we achieve a reduction of the total drilling length, to have a reduction of the amount of explosives and other changes during the blasting process which do not greatly affect the cost of blasting. Determining the impact of drilling angle on the cost of blasting is determined by analytical methods and by comparing the results of applied drilling angle methods. During the analytical analysis of the blasting data and the comparison of their results, which was performed to determine the change in the cost of blasting depending on the drilling angle, and it concluded that for the removal of 200000 (m3) rock material, 356167.98 (€) can be saved, by applying the 90° angle drilling method. This change of drilling angle from the projected angle of 63° to the angle of drilling 90°, reduces the total cost of blastings by about 10.69 (%).

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Petrenko, Volodymyr, Oleksii Tiutkin, Ihor Heletiuk, and Taisiia Tkach. "The new approach in evaluating the mechanism of the blast effect and organizing the blasting operations while tunneling." E3S Web of Conferences 168 (2020): 00034. http://dx.doi.org/10.1051/e3sconf/202016800034.

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It is relevant for the organization of blasting operations with consideration to the mechanism of blast effect to justify new provisions due to the emergence of new explosives, means of initiating charges and instrumental measurement of parameters. In view of this, a new approach is needed for evaluating the mechanism of blast effect in the combined application of short-delay and delay-action blastings with a high level of organization and safety. Analyzing the results in the justification of the short-delayed blasting, obtained by many researchers in recent decades, its main advantages and some limitations in its evaluation have been identified. A clear justification for the combined application under seismic safety is provided. New results to explain the mechanism of the blast effect in the combined application of short-delay and delay-action blastings at tunneling facilities have been obtained. They help in the seismic action reduction under the conditions of close city development. Methodological approaches to organize blasting operations at complex facilities in Ukraine implemented during tunneling have been developed.

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Dai, Jun, and Yuan Liu. "The Method of Optimizing Blasting Parameters for Driving Tunnel Based on the Outcome Analyses." Advanced Materials Research 243-249 (May 2011): 3449–55. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.3449.

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To get optimum blasting parameter bringing out the best blasting outcome is very helpful to increase the speed and efficiency in tunnel-building. For this reason, the effect of blasting parameters on blasting outcome is analyzed based on that the rocks are complex and changeful through which the tunnel is driven and that there is a gap between blasting theory and blasting practice. The method helpful to get the optimum blasting parameters is present in which the blasting outcome is measured, recorded and analyzed, and the blasting parameters are adjusted aiming at the specific tunnel according to the blasting theory and the blasting technician’s experience. The presented method is important and significant for improving the tunnel-building technique by blasting, realizing the high speed and efficiency of tunnel-building by blasting.

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Xie, Lixiang, Wenbo Lu, Jincai Gu, and Gaohui Wang. "Excavation Method of Reducing Blasting Vibration in Complicated Geological Conditions." Shock and Vibration 2018 (May 28, 2018): 1–12. http://dx.doi.org/10.1155/2018/2518209.

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Drilling and blasting method as a common excavation method is widely used in the underground engineering construction. However, in the complicated geological conditions, the path of blasting excavation available has limitation, and then the larger blasting vibration is produced, which influence the stability and safety of the protected structure. To effectively reduce the blasting vibration by optimizing the blasting excavation method, firstly, the site test on blasting vibration is conducted to obtain the blasting vibration data; secondly, the LS-DYNA software is applied to simulate the vibration generated by blasting in site test, based on back analysis on the blasting vibration, the mechanical parameters of the rock mass are obtained, and they are used to simulate six different types of blasting excavation method. According to the analysis on them, the reasonable blasting excavation method is proposed to reduce the blasting vibration which can satisfy the blasting safety regulation.

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Ding, Chenxi, Renshu Yang, Zhen Lei, Cheng Chen, and Changda Zheng. "Experimental Study on Blasting Energy Distribution and Utilization Efficiency Using Water Jet Test." Energies 13, no. 20 (October 14, 2020): 5340. http://dx.doi.org/10.3390/en13205340.

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The blasting stress wave and blasting gas generated by explosive blasting are the two main motive powers of rock fragmentation. An experimental method based on water jet test is used to study the energy distribution ratio of blasting stress wave and blasting gas; the utilization efficiency of blasting energy under different borehole constraint conditions is also analyzed. It proves that the blasting stress wave does not cause the water jet, and the blasting gas is the only power of the water column jet. The results show that the energy of the blasting gas and blasting stress wave respectively account for about 64% and 36% of the total energy generated by the explosion of lead azide. The utilization efficiency of the blasting gas energy under strong, medium, and weak constraint conditions is 100%, 80%, and 52%, respectively. The borehole constraint condition is crucial for the effective utilization of blasting energy.

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Wang, Wei, De Ming Zheng, and Hai Yun Feng. "Blasting Demolition of a Special Structure Storehouse." Advanced Materials Research 529 (June 2012): 468–72. http://dx.doi.org/10.4028/www.scientific.net/amr.529.468.

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Describes the successful experience of using explosive demolish a special structure thick-wall storehouse. According to the actual field, the disperse distance of the blasted rocks and the blasting vibration were controlled effectively by blasting scheme, the powder factor, blasting network, air-decking blasting technology and millisecond blasting technology. In addition, the blasting of foundation pit was finished by primary ignition, which guaranteed the satisfactory blasting effect as well as the safety of buildings and facilities near the blasting zone.

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Ke, Bo, Ruohan Pan, Jian Zhang, Wei Wang, Yong Hu, Gao Lei, Xiuwen Chi, Gaofeng Ren, and Yuhao You. "Parameter Optimization and Fragmentation Prediction of Fan-Shaped Deep Hole Blasting in Sanxin Gold and Copper Mine." Minerals 12, no. 7 (June 21, 2022): 788. http://dx.doi.org/10.3390/min12070788.

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For San-Xin gold and copper mine, deep blasting large block rate is high resulting in difficulty in transporting the ore out; secondary blasting not only increases blasting costs but is more likely to cause the top and bottom plate of the underground to become loose causing safety hazards. Based on the research background of Sanxin gold and copper mine, deep hole blasting parameters were determined by single-hole, variable-hole pitch, and oblique hole blasting tests, further using the inversion method to determine the optimal deep hole blasting parameters. Meanwhile, the PSO-BP neural network method was used to predict the block rate in deep hole blasting. The results of the study showed that the optimal minimum resistance line was 1.24–1.44 m, which was lower than 1.6–1.8 m in the original blasting design, which was one of the reasons for the higher blasting block rate. In addition, the PSO-BP deep hole blasting fragmentation prediction model predicts the block rate of the optimized blasting parameters and predicted a block rate of 6.83% after the optimization of hole network parameters. Its prediction accuracy is high, and the blasting parameter optimization can effectively reduce the block rate. It can reasonably reduce the rate of large pieces produced by blasting, improve blasting efficiency, and save blasting costs for enterprises. The result has wide applicability and can provide solutions for underground mines that also have problems with blasting large block rate.

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Gao, Feng, Xin Li, Xin Xiong, Haichuan Lu, and Zengwu Luo. "Refined Design and Optimization of Underground Medium and Long Hole Blasting Parameters—A Case Study of the Gaofeng Mine." Mathematics 11, no. 7 (March 27, 2023): 1612. http://dx.doi.org/10.3390/math11071612.

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Previously conducted studies have established that the rationality of the parameters of medium-deep hole blasting is one of the main factors affecting the blasting effect. To solve the problem of the parameter design and optimization design of medium-deep hole blasting in underground mines, a method of parameter design and the optimization of medium-deep hole blasting based on the blasting crater tests and numerical simulation analyses has been proposed in this study. Based on the background of deep underground mining in Gaofeng Mine, a two-hole blasting model has been established, and the blasting parameters are simulated and analyzed by the damage stress variation of the two-hole model. During the study, the initial values of blasting parameters were first obtained from the field blasting crater test, then the blasting parameters were optimized and analyzed by LS-DYNA software, and finally, the optimization scheme was demonstrated by the corresponding blasting test. The results of the field test showed that the design method of integrated blast crater test and numerical simulation analysis can effectively optimize the design of medium-deep hole blasting parameters and improve the blasting effect to a large extent. This study also provides an effective design system for the design of deep hole blasting parameters in similar mines.

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Fang, Ze Fa, Ming Xing Hui, Yi Yang, and Nin Fang. "Application of Hole by Hole Blasting Technique in the Foundation Pit Excavation." Advanced Materials Research 529 (June 2012): 398–401. http://dx.doi.org/10.4028/www.scientific.net/amr.529.398.

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The excavation blasting is required for the rock pit of a steel plant in Huangshi city. Due to the chimmey and pool of in-situ concrete foundation are close to the complex environment blasting area, the small hole bench blasting, hole by hole blasting technique were adopted, the reasonable network parameters and millisecond delay time were investigated. Meanwhile the blasting hole was covered for protection. It is shown that the proposed solution can decrease blasting vibration but also control the fly-rocks. The rock blasting effect is favorable and the blasting purpose is achieved.

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Pradatama, Dhion, Chani Pradasara, and M. Syafiq Isnaya. "The application of “line drilling” and “buffer holes” methods to reduce blasting vibration." IOP Conference Series: Earth and Environmental Science 882, no. 1 (November 1, 2021): 012057. http://dx.doi.org/10.1088/1755-1315/882/1/012057.

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Abstract PT Multi Nitrotama Kimia is one of the largest mining service companies that provide blasting services and sales of explosives in Indonesia. PT Putra Perkasa Abadi Jobsite Borneo Indobara is one of PT Multi Nitrotama Kimia’s customers who is facing challenges in optimizing blasting activities. Currently, blasting activities at PT Putra Perkasa Abadi Jobsite Borneo Indobara are carried out within 500 m of the active slope, so that the blasting distance is optimized. In optimizing the blasting distance, it is necessary to maintain slope conditions (no underbreak / no overbreak) and to consider the vibration of blasting results on the slopes. The line drilling method was chosen for the blasting trial stage. In the observation activity, an analysis of the resulting blasting and fragmentation vibrations was carried out. Precise planning and good control in field operations play an important role in this experimental process. Based on the results of the blasting trial, no damage was found in the area 25 m – 100 m from the blasting location and a 10% - 20% reduction in blasting vibration results (Peak Vector Sum) was obtained when compared between normal blasting designs with controlled blasting designs.

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Dissertations / Theses on the topic "Blasting"

1

Tang, Baoyao. "Rockburst control using destress blasting." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0029/NQ64678.pdf.

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Tang, Baoyao 1963. "Rockburst control using destress blasting." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36717.

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One of the main problems facing mining engineers when dealing with deep, hard rock mines is to prevent and/or reduce rockburst hazard around mine openings. Rockburst is a phenomenon which is characterised by violent rock failure. The current research focuses on the assessment and control of rockbursts in deep, hard rock mines.
Strainbursts, or strain-type rockbursts, occur in the vicinity of mine openings and are generally provoked by high stress conditions in a brittle rock mass. A new theory has been developed for the assessment of the potential of violent rock failure by strainburst, in underground hard rock mines. In this theory, the mining-induced energy parameters are used to calculate the so-called burst potential index (BPI). When the BPI reaches or exceeds 100%, the method predicts a burst prone situation. One of the most commonly used methods to control strainbursts in hard rock mines is destress blasting.
Motivated by the lack of a dedicated analysis tool to help assess destress blasting, a new, geomechanical model was developed. The technique employs two newly introduced parameters, alpha, a rock fragmentation factor, and beta, a stress dissipation factor, inside the modelled, fractured zone. Implemented in a 3-dimensional finite element code developed by the author, the new model simulates the damage zone induced by destress blasting of a mining face to help evaluate the efficiency of destress blasting. Extensive model verification and parametric studies have been undertaken. The effects of the destress blasting pattern, premining stresses and their orientation, and the two destress blasting factors (rock fragmentation factor, and stress dissipation factor) are studied. The model has been applied successfully to Canadian mine case histories. A detailed case study of a cut-and-fill mine stope involving crown and sill pillar destressing has been carried out. It is shown that the new method can be useful in the assessment of destress blasting in deep drift face development and the crown/sill pillar problems in cut-and-fill mine stopes.

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Michaux, Simon P. "Analysis of fines generation in blasting /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19129.pdf.

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Hunter, Graham C. "Economic assessment of open pit blasting." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292230.

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Talhi, Korichi. "Aspects of blasting in surface mines." Thesis, University of Surrey, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280422.

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Paine, Andrew Steven. "The mathematical modelling of rock blasting." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315504.

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Oñederra, Italo Andres. "A fragmentation model for underground production blasting /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18377.pdf.

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Larson-Robl, Kylie M. "PORE PRESSURE MEASUREMENT INSTRUMENTATION RESPONSE TO BLASTING." UKnowledge, 2016. http://uknowledge.uky.edu/mng_etds/30.

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Coal mine impoundment failures have been well documented to occur due to an increase in excess pore pressure from sustained monotonic loads. Very few failures have ever occurred from dynamic loading events, such as earthquakes, and research has been done regarding the stability of these impoundment structures under such natural seismic loading events. To date no failures or damage have been reported from dynamic loading events caused by near-by production blasting, however little research has been done considering these conditions. Taking into account that current environmental restrictions oblige to increase the capacity of coal impoundments, thus increasing the hazard of such structures, it is necessary to evaluate the effects of near-by blasting on the stability of the impoundment structures. To study the behavior of excess pore pressure under blasting conditions, scaled simulations of blasting events were set inside a controlled sand tank. Simulated blasts were duplicated in both saturated and unsaturated conditions. Explosive charges were detonated within the sand tank at various distances to simulate different scaled distances. Information was collected from geophones for dry and saturated scenarios and additionally from pressure sensors under saturated conditions to assess the behavior of the material under blasting conditions.

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Zagreba, Sergey Victorovych. "FRAGM a blasting fragmentation model of rocks /." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=3120.

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Thesis (M.S.)--West Virginia University, 2003.
Title from document title page. Document formatted into pages; contains viii, 175 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 109-119).

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Charlesworth, Cathy. "Impact of blasting vibrations in an urban environment." Thesis, Click to view the E-thesis via HKUTO, 2000. http://sunzi.lib.hku.hk/hkuto/record/B42575503.

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Books on the topic "Blasting"

1

Small, Brian Russell. Tracer blasting. Sudbury, Ont: Laurentian University, School of Engineering, 1994.

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2

Konya, Calvin J. Rock blasting. McLean, Va: U.S. Dept. of Transportation, Federal Highway Administration, Research, Development, and Technology, 1985.

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J, Walter Edward, United States. Federal Highway Administration, and Precision Blasting Services (Montville, Ohio), eds. Rock blasting. McLean, Va: U.S. Dept. of Transportation, Federal Highway Administration, 1985.

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Technology & Development Center (Missoula, Mont.). Missoula blasting & explosives. Missoula, MT: USDA Forest Service, Technology & Development Program, 1997.

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Rosenthal, Michael F. Blasting guidance manual. [Washington, D.C.?]: Office of Surface Mining Reclamation and Enforcement, U.S. Dept. of the Interior, 1987.

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6

Perry, Lesley. The utility of sequential blasting techniques in current blasting practice. Sudbury, Ont: Laurentian University, School of Engineering, 1993.

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7

Bhatawdekar, Ramesh M., Danial Jahed Armaghani, and Aydin Azizi. Environmental Issues of Blasting. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-8237-7.

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8

Tracy, M. Casting overburden by blasting. S.l: s.n, 1985.

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9

Fischer, Richard L. Blasting incidents in mining. [Denver, Colo.?]: U.S. Dept. of Labor, Mine Safety and Health Administration, Denver Safety and Health Technology Center, Division of Industrial and Electrical Safety, 1988.

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10

Copyright Paperback Collection (Library of Congress), ed. Blasting into the past. Weston, FL: Paradise Press, 2000.

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Book chapters on the topic "Blasting"

1

Hempen, Gregory L. "Blasting." In Selective Neck Dissection for Oral Cancer, 1–2. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-12127-7_30-1.

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Wyllie, Duncan C. "Blasting." In Rock Slope Engineering, 349–90. Fifth edition. | Boca Raton : Taylor & Francis, CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.4324/9781315154039-13.

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Wyllie, Duncan C. "Blasting." In Rock Slope Engineering, 349–90. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315154039-14.

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Hempen, Gregory L. "Blasting." In Encyclopedia of Earth Sciences Series, 62–63. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73568-9_30.

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Sengupta, Mritunjoy. "Blasting." In Environmental Impacts of Mining, 265–68. 2nd ed. Second edition. | Boca Raton, FL : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/9781003164012-10.

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Zou, Dingxiang. "Blasting Safety for Surface Blasting." In Theory and Technology of Rock Excavation for Civil Engineering, 343–77. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1989-0_11.

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Chen, Junkai, Wenxue Gao, Xiangjun Hao, Zheng Wei, Xiaojun Zhang, and Zhaochen Liu. "Multilateral Boundary Blasting Theory of High and Steep Slope in Open Pit Mine and Its Application." In Lecture Notes in Civil Engineering, 347–57. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_32.

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AbstractAt present, the blasting theory of high and steep rock slope mainly focuses on flat terrain, ignoring the influence of micro-terrain boundary factors on blasting effect, which leads to excessive blasting energy and affects the stability of slope. Therefore, based on the theory of multilateral boundary rock blasting, this paper deduces the calculation formula of blasting charge for high and steep rock slope under multilateral boundary conditions, and verifies it with field test. The results show that: (1) The multilateral boundary charge calculation formula directly includes micro-topography boundary conditions and blasting effect, and the rock blasting theory is based on the interaction of blasting energy provided by explosives and potential energy in medium, which effectively improves the energy utilization rate of explosives. (2) The influence of surplus blasting energy on the surrounding environment under different boundary conditions is controlled, and the explosive explosion effect is effectively controlled, so that a stable high and steep slope of open pit mine is formed after blasting.

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Cui, Zheng. "Powder Blasting." In Encyclopedia of Microfluidics and Nanofluidics, 2824–27. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-5491-5_1282.

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"blasting." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 133. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_21887.

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"blasting." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 133. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_21888.

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Conference papers on the topic "Blasting"

1

Purson, Jack. "Blasting machines." In 33rd Annual New Mexico Mineral Symposium and 4th Annual Mining Artifact Collectors Association Symposium. Socorro, NM: New Mexico Bureau of Geology and Mineral Resources, 2012. http://dx.doi.org/10.58799/nmms-2012.461.

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Cihangir, Ferdi. "A PRACTICAL STUDY ON THE AIR-SHOCK CONTROL IN URBAN MOTORWAY SLOPE EXCAVATIONS BY BLASTING." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023/1.1/s03.36.

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Blasting and mechanical excavation systems are the main methods used in the excavation of rocks masses in mining and construction works. Mechanical excavation is insufficient in the case of very hard rocks masses. Therefore, blasting is widely preferred for the excavation of hard rock masses. Environmental parameters such as ground vibrations, air-shock and fly-rock occur due to blasting. The magnitude of these parameters depend on the explosive per delay, distance between the measurement- and blasting points, geology and topography, blasting technique and blasting design. In this study, blast-induced air blast measurements were carried out at the same ground level as the blasting point and upper ground level point than the blasting point. Blastings were performed for the excavation of an urban motorway slope. Sand-bags were placed as barriers on the blast holes and capsules to investigate whether the air-shock levels could be reduced. Application of sand-bags was seen to reduce the frequencies of air-shock waves at the same- and upper level points. When the amount of explosive increased up to 2.67 times, air-shock levels only increased by 4.38% at the same level and by 5.51% at the upper level. However, frequencies of the air-shocks significantly decreased by 54.55% at the same- and by 48.51% at the upper level. This study suggests that the use of sand-bags as a barrier can significantly reduce the effects of blast-induced air shocks.

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Teowee, Gimtong. "SDI's Electronic Blasting System for Commercial Mining and Blasting." In 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-4989.

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Lonergan, Jeffrey M. "Dry Ice Blasting." In Airframe Finishing, Maintenance & Repair Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/920934.

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Sulistiyono, B., F. Nugraheni, M. A. Wibowo, and A. Musyafa. "MODIFICATION OF BLASTING GEOMETRY TO INCREASE BLASTING EFFECTIVENESS IN QUARRY." In 7th International Conference on Sustainable Built Environment. Universitas Islam Indonesia, 2023. http://dx.doi.org/10.20885/icsbe.vol2.art10.

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It is thought that a technique for carrying out blasting operations for rock extraction must be both effective and secure. It is intended that the blasting will be both safe and able to meet the needs of the stockpile material because the blasting area is adjacent to residential areas. This study intends to determine the cost and duration of the rock excavation work by blasting at the Trenggalek Tugu Dam Construction Project, as well as the effectiveness brought about by the implementation of modified blasting geometry. The inquiry was supported by descriptive and comparative methodologies. For this study, both quantitative and qualitative data were required. Quantitative data was gathered using working drawings, tool specifications, and material specifications; qualitative data was gathered using work procedures, specifications, and islands for related jobs. Quantitative information is obtained through the analysis of papers written by consultants and service providers. To acquire qualitative power, interviews with subject-matter experts and literature research were conducted. Because the work can be done more rapidly than with the prior geometry and because doing so has a lower cost analysis, the results reveal that using the modified geometry is more cost-effective than using the prior blasting geometry. Utilizing a combination of blasting geometry using the CJ Konya method and ICI-Explosive, there was a 9.3% acceleration in task execution and a 1.133% cost efficiency of the contract value (Trial & Error).

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Nesbitt, Phil. "The Search for Air Overpressure During Blasting Operations." In The Search for Air Overpressure During Blasting Operations. US DOE, 2021. http://dx.doi.org/10.2172/1825292.

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Nesbitt, Phil. "The Search for Air Overpressure During Blasting Operations." In The Search for Air Overpressure During Blasting Operations. US DOE, 2021. http://dx.doi.org/10.2172/1825292.

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Braehler, Georg, Philipp Welbers, Mike Kelly, Gianfranco Brunetti, and D. van Regenmortel. "Abrasive Blasting Unit (ABU)." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16270.

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NUKEM Technologies was contracted to supply a dry, automated drum belt (tumbling) Abrasive Blasting Unit (ABU) to the Joint Research Centre of the European Commission in Ispra, Italy. The ABU was installed in the centralised radioactive waste management area of the JRC-Ispra site in Italy. The unit is to be employed for the decontamination to clearance levels of slightly contaminated metal components and, where practical, concrete or heavy concrete (density ∼3200 kg/m3) blocks arising from the dismantling of nuclear facilities. The presentation is based on the successful construction and installation of the ABU at the JRC Ispra site. Among the several possibilities of adapting conventional abrasive units to nuclear applications, an automatic tumbling machine was preferred, due to the larger output and (mainly) for the ease of operation, with minimum direct handling of contaminated material by operators, thus satisfying the ALARA principle. Consideration was also given to Belgoprocess’ successful experience with a predecessor, similar unit. After adequate size reduction batches of up to about 800 kg of material to be decontaminated are automatically introduced into the blasting chamber. Pieces between 100 mm and 800 mm long, between 100 mm and 500 mm wide and between 5 mm and 300 mm high can be effectively treated in the unit, the maximum weight of a single piece being limited to 100 kg. Short lengths of pipe may be included; the final dimensions of pipe to be decontaminated will be established during the nuclear commissioning tests. Other components with hard-to-reach surfaces may also be included. The content of the chamber is tumbled by two bladed drums, while sharp steel grit is sprayed onto the contaminated components, thus removing the surface layer including any contamination. From experience, 30 minutes of treatment is sufficient to remove contamination to levels below expected clearance levels for most materials. The decontaminated components are removed from the blasting chamber automatically and collected in skips. Dust and grit are led to a series of separators; the grit gets recycled to the blasting chamber, cleaned off contaminants such as paint are fed to collection bins, and the dust is bagged into waste drums. Airflow through the whole system cleans the decontaminated components, transports the dust to the collecting area, and acts as a dynamic barrier to limit risks of contamination of the surrounding areas. Prior to release back into the room, the air is filtered in a series of automatically cleaned filters, followed by HEPA filters. The whole facility is operated in an automatic mode: the operators are only required to place drums or pallets of contaminated material onto the feeder, and remove skips of decontaminated material and drums of secondary waste such as dust. The presentation will describe the system and potential applications in the nuclear industry in detail.

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9

Purson, Jack. "Blasting from the past." In 31st Annual New Mexico Mineral Symposium and 2cd Annual Mining Artifact Collectors Association Symposium. Socorro, NM: New Mexico Bureau of Geology and Mineral Resources, 2010. http://dx.doi.org/10.58799/nmms-2010.352.

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10

Xie, Huagang, Lingli Wu, Yanqi Fan, Guoguo Wang, Jun Pan, and Kun Cheng. "Coupling charge blasting research." In 2018 8th International Conference on Manufacturing Science and Engineering (ICMSE 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/icmse-18.2018.31.

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Reports on the topic "Blasting"

1

Deel, Omar. Plastic Media Blasting. Fort Belvoir, VA: Defense Technical Information Center, March 1995. http://dx.doi.org/10.21236/ada302845.

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2

Francini and Zand. PR-218-094510-R01 Procedure for Evaluating the Effects of Blasting on Pipelines - Phase 1 Summary Report. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), June 2014. http://dx.doi.org/10.55274/r0010024.

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This report contains a state of the art review of current methods for evaluating the effects of close in blasting on pipelines. The report includes a comparison of current methods for determining the stress resulting from blasting with available experimental results. It also covers the subject of block movement as a result of delayed gas pressure, methods to determine the likelihood of ground movement and procedures for evaluating if movement has occurred. More accurate methods to determine blasting stresses are investigated. A procedure to be followed to evaluate the effects of blasting is proposed. Finally, recent developments in blasting technology that are relevant to blasting near pipelines are reviewed.

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3

McPhee, William S. HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM. Office of Scientific and Technical Information (OSTI), August 2001. http://dx.doi.org/10.2172/793656.

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4

William S. McPhee. HIGH PRODUCTIVITY VACUUM BLASTING SYSTEM. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/772473.

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5

Cubillos, Alonso, Eric Krumm, Juan Umerez, Lukas Arenson, and Pablo Wainstein. Safe blasting near rock glaciers. International Permafrost Association (IPA), June 2024. http://dx.doi.org/10.52381/icop2024.168.1.

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6

Oswald and Smith. L52260 Gap Study and Recommendation - Pipe Response to Buried Explosive Detonations. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), May 2005. http://dx.doi.org/10.55274/r0010252.

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Current methods to assess pipeline response to nearby sub-surface blasting are largely empirical or semiempirical and do not consider increasingly important factors such as non-pristine pipelines, blasting in soil with varying soil and terrain characteristics, or mitigative measures. Also, the accuracy and limits to the applicability of these methods is questionable. Result: A primary task of this project was a literature search to identify all available testing, analysis, and mitigation methods related to blasting near pipelines. Analytical methods to consider cracks and corrosion in non-pristine pipeline are also reviewed in the report. The literature search showed that a significant database of test results of steel pipeline response to blasting in soil is available. A more limited database is available for steel pipeline response to blasting in rock and practically no data is available for non-steel and non-pristine pipeline response to blasting. The available models to predict blasting stresses in pipelines ranged from a semi-empirical method to predict pipeline stress to simple soil peak particle velocity (PPV) limits on ground shock produced at the pipeline location to prevent pipeline damage. Benefit: The literature review covered four main categories: data from blasting near pipelines and earthquakes, methodologies for predicting or controlling pipeline stresses from blasting, information on mitigative measures to reduce pipeline stresses from blasting, and methods to account for the effects of non-pristine pipeline. Procedures to address combined loadings on typical transmission pipelines are also summarized.

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7

Archibald, K. E. CO{sub 2} pellet blasting studies. Office of Scientific and Technical Information (OSTI), January 1997. http://dx.doi.org/10.2172/481859.

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8

May, Chadd, Ralph Hodgin, and Dan Phillips. FY2014 LX-21 Blasting Cap Testing. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1183555.

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9

Radonich, B., and M. Wells. Evaluation of Plastic Media Blasting Equipment. Fort Belvoir, VA: Defense Technical Information Center, April 1987. http://dx.doi.org/10.21236/ada208594.

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10

Hart, M. Ultra Safe And Secure Blasting System. Office of Scientific and Technical Information (OSTI), July 2009. http://dx.doi.org/10.2172/966916.

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