Relevant bibliographies by topics / WEAK SOIL

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'WEAK SOIL'

Author: Grafiati
Published: 11 September 2023

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Journal articles on the topic "WEAK SOIL"

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Usmanov, Rustam, Ivan Mrdak, Nikolay Vatin, and Vera Murgul. "Reinforced Soil Beds on Weak Soils." Applied Mechanics and Materials 633-634 (September 2014): 932–35. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.932.

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Changing a layer of weak soil in deformed foundation with a compacted soil bed consisted of various strong materials (sand, gravel, pebble-gravel, production waste materials). Existing calculation methods and techniques to build compacted soil beds based on weak highly compressive soils do not meet up-to-date requirements. Calculation methods used the dimensions of compacted beds quite often appear to be overestimated, and this results in increase in costs and working hours needed to build artificial foundation. The paper presents the possibility of using reinforced soil beds as an efficient m
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Zaitsev, A. A., and V. G. Ofrikhter. "THE RESULTS OF FIELD TESTS OF WEAK SOILS." Construction and Geotechnics 10, no. 2 (2019): 56–65. http://dx.doi.org/10.15593/2224-9826/2019.2.05.

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Organization of construction on sites built of weak soils is associated with certain problems, one of which is the construction of temporary roads and foundations for building mechanisms (pile drivers, cranes, etc.). Temporary roads necessary attributes of any construction, ensuring the availability of facilities and linear structures. One of the features of the temporary roads is their erection in accordance with the staged scheme of the organization of construction. Physico-mechanical characteristics of the soils are necessary for the design of such passages using which it is possible to per
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Akulova, Yu N., I. I. Sakharov, and V. V. Lushnikov. "Strengthening of weak foundation soils with crushed stone piles." Вестник гражданских инженеров 17, no. 6 (2020): 126–31. http://dx.doi.org/10.23968/1999-5571-2020-17-6-126-131.

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The article presents an innovative technique of deep vibration compaction for soft saturated soils with crushed stone piles. The methods for calculating the strength and deformation characteristics of reinforced soil mass proposed by H. J. Priebe and A. Z. Ter-Martirosyan are presented. An example of the road embankment base in the Plaxis 3D software package is given, taking into account the improvement of the soil mass with crushed stone piles.
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Alsharef, Jamal M. A., Mohd Raihan Taha, Ali Akbar Firoozi, and Panbarasi Govindasamy. "Potential of Using Nanocarbons to Stabilize Weak Soils." Applied and Environmental Soil Science 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/5060531.

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Soil stabilization, using a variety of stabilizers, is a common method used by engineers and designers to enhance the properties of soil. The use of nanomaterials for soil stabilization is one of the most active research areas that also encompass a number of disciplines, including civil engineering and construction materials. Soils improved by nanomaterials could provide a novel, smart, and eco- and environment-friendly construction material for sustainability. In this case, carbon nanomaterials (CNMs) have become candidates for numerous applications in civil engineering. The main objective of
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Lawrence, David M., and Julia M. Slingo. "Weak Land–Atmosphere Coupling Strength in HadAM3: The Role of Soil Moisture Variability." Journal of Hydrometeorology 6, no. 5 (2005): 670–80. http://dx.doi.org/10.1175/jhm445.1.

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Abstract A recent model intercomparison, the Global Land–Atmosphere Coupling Experiment (GLACE), showed that there is a wide range of land–atmosphere coupling strengths, or the degree that soil moisture affects the generation of precipitation, amongst current atmospheric general circulation models (AGCMs). Coupling strength in the Hadley Centre atmosphere model (HadAM3) is among the weakest of all AGCMs considered in GLACE. Reasons for the weak HadAM3 coupling strength are sought here. In particular, the impact of pervasive saturated soil conditions and low soil moisture variability on couplin
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Kopiika, Nadiia, and Yuriy Petrenko. "Analysis of the Weak Soil Behavior, Modified Through Cementation." Advanced Journal of Graduate Research 7, no. 1 (2019): 27–36. http://dx.doi.org/10.21467/ajgr.7.1.27-36.

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The purpose of the study is to conduct thorough theoretical research and literature overview regarding possible ways of soil stabilization on the basis of this practice increasing demand. In particular an emphasis is made on the chemical technique for weak soils strengthening, due to its prevalence and various practical and economic advantages. Great amount of promiscuous data was analyzed and organized; in addition on its basis an attempt is made to provide convincing calculation technique for further usage in engineering soils` stabilization practice. Besides, various factors which could inf
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Eisa, M. S., M. E. Basiouny, A. Mohamady, and M. Mira. "Improving Weak Subgrade Soil Using Different Additives." Materials 15, no. 13 (2022): 4462. http://dx.doi.org/10.3390/ma15134462.

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Weak subgrade is the main problem facing most highway projects. Therefore, this study focuses on trying to improve the properties and increase the strength of weak, clayey, swelling soil for use as a subgrade for pavement structural sections. This trial was developed using a mix of granular and chemical stabilization for the soil. Granular stabilization was applied firstly by mixing natural sand at different percentages of 20%, 35%, and 50% of the total weight of clayey, swelling soil samples to find the minimum percentage that could be added to improve it to sandy, clayey soil, which is accep
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Jayasree, Parameswaran K., and Musthafakunju Ansar. "Use of novel materials for reinforced soil walls on weak soils." Proceedings of the Institution of Civil Engineers - Construction Materials 165, no. 6 (2012): 345–53. http://dx.doi.org/10.1680/coma.10.00038.

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Yadav, B. Manoj. "Improvement of weak soil by DSM method." International Journal of Civil Engineering 4, no. 6 (2017): 42. http://dx.doi.org/10.14445/23488352/ijce-v4i6p107.

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Lin, Chunxiu, Chang Xia, Zhen Liu, and Cuiying Zhou. "A Comprehensive Correlation Study of Structured Soils in Coastal Area of South China about Structural Characteristics." Journal of Marine Science and Engineering 10, no. 4 (2022): 508. http://dx.doi.org/10.3390/jmse10040508.

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Granite residual soil is a common engineering material, and its mechanical properties are of great importance to engineering safety. This kind of soil presents obvious structural characteristics, and many researchers have emphasized the significance of its structural features. According to previous experiments, from a macroscopic perspective, many researchers have investigated the structural relationship between undisturbed and remolded soils, but few studies have considered it in the mesoscopic aspect. Adopting DEM (a mesomechanical simulation method), we can study how the structure affects t
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Dissertations / Theses on the topic "WEAK SOIL"

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Shi, Liangyu. "Influence of artificial weak cementation on loose silty sand behavior /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20SHI.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 163-170). Also available in electronic version. Access restricted to campus users.
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A, Rashid Ahmad Safuan. "Behaviour of weak soils reinforced with soil columns formed by the deep mixing method." Thesis, University of Sheffield, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548631.

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Wong, Kan-hok Ken. "Review of Menard pressuremeter test in weak rocks." Click to view the E-thesis via HKUTO, 2003. http://sunzi.lib.hku.hk/hkuto/record/B4257724X.

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Wong, Kan-hok Ken, and 王勤學. "Review of Menard pressuremeter test in weak rocks." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B4257724X.

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Ley, George J. "A study of hard-setting behaviour of structurally weak tropical soils." Thesis, University of Aberdeen, 1988. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU010493.

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Some soils set to a hard structureless mass on drying and this behaviour may limit crop productivity. The purpose of this study was to assess the extent to which soil management and soil properties influence hard-setting behaviour in order to identify those soil properties which are most appropriate to characterise the limitations to management and crop growth imposed by hard-setting. Five sites from four vegetation zones of Nigeria were investigated. Within each site soils were sampled from no-till or forested plots and these were contrasted with cleared (deforested) amd ploughed plots. Hard-
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Shorten, David. "The quantification and improvement of vehicle support capacity in a weak soil." Thesis, Cranfield University, 2004. http://dspace.lib.cranfield.ac.uk/handle/1826/11193.

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The aim of this study was to improve the characteristics of surfacing methods/materials for the temporary support of military vehicles travelling over weak soils. Both off road travel and poor existing road networks provide problems for vehicle mobility in military operations under these conditions. Conventional road construction materials are often in short supply and engineered solutions such as Class 30 & 70 Trackway are expensive and form a significant logistical burden on the military supply chain. In this situation the use of locally available alternative materials in the construction of
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Bowers, Keith Henry. "An appraisal of the New Austrian Tunnelling Method in soil and weak rock." Thesis, University of Leeds, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580652.

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Althoff, Sebastian. "Nutzung gering tragfähiger Böden für geokunststoffbewehrten Erdbau." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-162385.

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Geokunststoffe sind beständige Produkte aus Polymeren, die in Boden eingelegt werden um geotechnische Probleme zu lösen. Eine Kategorie der Geokunststoffe sind Geogitter, bei denen die Längs- und Querelemente eine offene, gitterförmige Struktur bilden und die meist zur Bodenbewehrung eingesetzt werden. Ihre Verwendung zur Bewehrung von gering tragfähigen Böden für kunststoffbewehrte Erd- und Stützbauwerke kann enorme ökologische und ökonomische Vorteile bieten. Trotz der Tatsache, dass die Verwendung von Geogittern in den letzten Jahren stark zugenommen hat, sind die Grundlagen zum Bau und zur
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Бережанська, С., та І. В. Маєвська. "Аналіз сучасних конструктивних рішень фундаментів малоповерхових будівель". Thesis, ВНТУ, 2018. http://ir.lib.vntu.edu.ua//handle/123456789/20979.

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Розглянуто основні конструктивні схеми фундаментів для малоповерхового будівництва при великій товщі глинистого ґрунту. Виконано розрахунок і проектування обраних конкурентоспроможних варіантів фундаментів, техніко-економічне порівнянні конструктивних рішень і вибір найбільш оптимального з них.<br>The basic constructive schemes of foundations for low-rise construction with a large thickness of clay soil are considered. The сalculation and design of selected competitive options, technical and economic comparison of constructive solutions and the choice of the most optimal ones are performed.
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Quirke, SJ. "Abrasive wear testing of steels in soil." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/21798.

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Bibliography: pages 133-136.<br>A survey has been made of the quality and type of materials used for tillage tools in South Africa. Conclusions have been drawn regarding the inadequacy of the manufacturing processes used and the resultant quality of the tool material. A rig has been designed for the abrasion testing of materials in soil. The reproducibility of the method has been shown to be high and an evaluation has been made of the relative wear resistance of a series of ·heat treated steels. A medium carbon boron steel has been shown to have great promise as a tillage tool material because
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Books on the topic "WEAK SOIL"

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Sorokina, G. V. Engineering properties of weak soils at foundations of buildings. A.A. Balkema, 1995.

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Conference, Geological Society of London Engineering Group. The engineering geology of weak rock. A.A. Balkema, 1993.

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European conference on soil mechanics and geotechnical engineering (15 2011 Athènes). Proceedings of the 15th European conference on soil mechanics and geotechnical engineering: Geotechnics of hard soils-weak rocks = la géotechnique des sols indurés-roches tendres. IOS press, 2011.

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Brown, D. A. (Dan A.), National Research Council (U.S.). Transportation Research Board, National Cooperative Highway Research Program, American Association of State Highway and Transportation Officials, and United States. Federal Highway Administration, eds. Design guidelines for increasing the lateral resistance of highway-bridge pile foundations by improving weak soils. Transportation Research Board, 2011.

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Kristin, Carroccino, and Kilmer Ricci, eds. A journey into wholeness: Soul travel from Lent to Easter. MSA Pub., 2014.

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Andrus, Crystal. Simply-- woman!: The 12-week body-mind-soul total transformation program. Hay House, 2008.

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Was im Gedächtnis bleiben soll: Das literarische Werk von Karin Gündisch. Schiller Verlag, 2014.

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Andrus, Crystal. Simply-- woman!: The 12-week body-mind-soul total transformation program. Hay House, 2008.

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Andrus, Crystal. Simply-- woman!: The 12-week body-mind-soul total transformation program. Hay House, 2008.

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Brown, Dan, and Kyle Rollins. Design Guidelines for Increasing the Lateral Resistance of Highway-Bridge Pile Foundations by Improving Weak Soils. National Academies Press, 2011. http://dx.doi.org/10.17226/14574.

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Book chapters on the topic "WEAK SOIL"

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O’Donnell, B., A. Swarup, A. Sidiq, D. Robert, and S. Setunge. "Guidelines for Enzymatic Soil Stabilization." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_40.

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AbstractThere are numerous manuals to guide practitioners in utilizing traditional additives in the construction of road, rail and dam construction but they fall short of specific guidance for non-standard additive-based ecofriendly and cost-effective soil stabilization. Increased attention has recently been on the use of non-standard additives for stabilizing weak soils due to environmental and cost concerns associated with traditional additives. We summarize the specific guidelines of using environmental-friendly enzymes to treat weak soils. We elaborate on the requirements and specifications for the Eko-Soil multi-enzyme product that is manufactured from water and proteins extracted from fermented exudes of plants. Specific tests (laboratory and field) and conditions required for soil stabilization using Eko-Soil enzyme are elaborated using the experience of past construction projects. The guide also elaborates enhancing the efficiency of enzymatic soil stabilization by correctly incorporating the required mixing proportions and pre-requisite condition tests. Professionals and practitioners will benefit from using novel eco-friendly sustainable stabilization techniques in the treatment of weak soils covering many applications including roads, foundations, water containment areas, landfills, working platforms and slope erosion control.
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Ye, Wei-Min, Ya-Wei Zhang, Bao Chen, and Shi-Fang Zhang. "Characteristics of Shear Strength of Unsaturated Weak Expansive Soil." In Advances in Environmental Geotechnics. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04460-1_45.

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Koskinen, William C., Alegria Cabrera, Kurt A. Spokas, Lucia Cox, Jennifer L. Rittenhouse, and Pamela J. Rice. "Effect of Carbonaceous Soil Amendments on Potential Mobility of Weak Acid Herbicides in Soil." In Functions of Natural Organic Matter in Changing Environment. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5634-2_90.

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Liu, Chun, Qingyi Lin, and Hang Zhang. "The application of PDA on weak soil in Fujian China." In Application of Stress-Wave Theory to Piles. Routledge, 2022. http://dx.doi.org/10.1201/9781315137544-39.

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Kim, You-Seong, and Myoung-Soo Won. "Deformation Behaviors of Geosynthetic Reinforced Soil Walls on Shallow Weak Ground." In Soil Stress-Strain Behavior: Measurement, Modeling and Analysis. Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6146-2_61.

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Furukawa, Makoto, Shuichiro Yoshida, and Naoto Nihei. "Evaluation of the Absorption of Different Forms of Cesium from Soil." In Agricultural Implications of Fukushima Nuclear Accident (IV). Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9361-9_7.

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AbstractCesium in soil exists in two forms. The soil in Fukushima Prefecture contaminated with radioactive cesium was classified into two fractions: the fraction of cesium with weak adsorption to soil (F1), and the fraction of cesium with strong adsorption to soil (F2). We evaluated the absorption of Cs by different crops (rice, soybean, and buckwheat) in different soil fractions by measuring the 133Cs and 137Cs concentrations in the soil and crops. We also evaluated the effect of potassium fertilization on cesium suppression in different soil fractions.Without K fertilization, 137Cs was absorbed mostly from the F1 fraction by all three crops; 133Cs was absorbed mostly from the F2 and F1 fractions by soybean and buckwheat, respectively, and from both F1 and F2 fractions by rice. Potassium fertilization decreased the percentages of both 137Cs and 133Cs absorbed from the F2 fraction by soybean. In contrast, buckwheat presented reduced absorption from the F1 fraction. In rice, the uptake of cesium by fraction did not change with or without potassium fertilization, indicating that different crops absorb cesium from different soil fractions.
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Rosolem, Ciro A., Antonio P. Mallarino, and Thiago A. R. Nogueira. "Considerations for Unharvested Plant Potassium." In Improving Potassium Recommendations for Agricultural Crops. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59197-7_6.

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AbstractPotassium (K) is found in plants as a free ion or in weak complexes. It is easily released from living or decomposing tissues, and it should be considered in fertilization programs. Several factors affect K cycling in agroecosystems, including soil and fertilizer K contributions, plant K content and exports, mineralization rates from residues, soil chemical reactions, rainfall, and time. Soil K+ ions can be leached, remain as exchangeable K, or migrate to non-exchangeable forms. Crop rotations that include vigorous, deep-rooted cover crops capable of exploring non-exchangeable K in soil are an effective strategy for recycling K and can prevent leaching below the rooting zone in light-textured soils. The amount of K released by cover crops depends on biomass production. Potassium recycled with non-harvested components of crops also varies greatly. Research with maize, soybean, and wheat has shown that 50–60% of K accumulated in vegetative tissues is released within 40–45 days. A better understanding of K cycling would greatly improve the efficacy of K management for crop production. When studying K cycling in agricultural systems, it is important to consider: (1) K addition from fertilizers and organic amendments; (2) K left in residues; (3) K partitioning differences among species; (4) soil texture; (5) soil pools that act as temporary sources or sinks for K. In this chapter, the role of cash and cover crops and organic residues on K cycling are explored to better understand how these factors could be integrated into making K fertilizer recommendations.
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Badry, Pallavi, and Ravi Shankar Badry. "Seismic Soil Structure Interaction Analysis of Rigid Piled Isolated Footing for Mid Rise Building in a Weak Soil." In Dynamic Soil-Structure Interaction for Sustainable Infrastructures. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01920-4_3.

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Yin, Jianliang, Zhikui Liu, Zhanfei Gu, Yan Yan, Yong Xiong Xie, and Bingyan Huang. "Effect of Dry-Wet Cycling on Shear Strength of Phyllite-Weathered Soil in Longsheng, Guilin." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1748-8_42.

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AbstractThe phyllite-weathered soil is a regional speciality. It is essential to study the changes in shear strength of phyllite-weathered soil under dry-wet cycles to understand the changes in mechanical properties of phyllite-weathered soil in the process of dry-wet climate and to manage the slope of phyllite-weathered soil. This paper simulated 12 dry-wet cycles on the specimens of remodelled phyllite-weathered soil. Direct shear and SEM tests were conducted on the specimens in the 0th, 3rd, 6th, 9th, and 12th drying paths. The effects of moisture content and the number of dry-wet cycles on the shear strength of phyllite-weathered soil were analysed macroscopically and microscopically. The following conclusions were obtained: (1) The cohesion of the weathered soil of phyllite will be reduced by increasing the number of cycles, and the more the number of dry-wet cycles, the more pronounced the reduction; the internal friction angle of the weathered soil of phyllite will be reduced by increasing the number of cycles, but the pattern of the decrease in the internal friction angle is not obvious. (2) The increase in the number of dry-wet cycles will increase the stiffness and brittleness of the phyllite-weathered soil specimen, and it will change from the weak hardening type of plastic damage to the solid softening type of brittle damage after a certain number of cycles. (3) The SEM test found that phyllite-weathered soil particles in Longsheng, Guilin are large, and most of the particles are in face-to-face and angle-to-face contact, which is easy to form a hollow structure, and the dry density value of the soil in the natural state is small. At the same time, the soil is reddish-brown in colour because of the leaching of Fe2 O3. The shear strength index of the cemented phyllite-weathered soil with Fe2 O3 is more significant than that of phyllite-weathered soil in other areas. The soil has a good shear strength index and a small dry density.
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Mangushev, Rashid, Evgeny Rybnov, Askar Zhussupbekov, and Abdulla Omarov. "Investigation of the Work of the Lakhta Center in Weak Soil Foundations of St. Petersburg." In XV International Scientific Conference “INTERAGROMASH 2022”. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21432-5_265.

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Conference papers on the topic "WEAK SOIL"

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Vynnykov, Yuriy, and Roman Razdui. "Comparison of Settlements of Buildings on Soil-Cement Soil Bases Determined Analytically and by Long-Term Geodetic Observations." In International Scientific Applied Conference "Problems of Emergency Situations". Trans Tech Publications Ltd, 2023. http://dx.doi.org/10.4028/p-x7fhpi.

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Comparative results of settlements of soil-cement soil bases of multi-story residential buildings determined by the methods of linear soil mechanics, finite element modeling in a planar (2D) and spatial (3D) setting using an elastic-plastic soil model, as well as long-term (over ten years) data of geodetic observations of natural objects are given. The object of this work was to evaluate the reliability of various methods of predicting the settlements of soil-cement soil bases of buildings on strip foundations in the presence of weak soils within the compressible soil thickness and reinforceme
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Nishimura, S., T. Shibata, T. Shuku, and K. Imaide. "Geostatistical Analysis for Identifying Weak Soil Layers in Dikes." In Geo-Risk 2017. American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480724.048.

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Shivashankar, R., and J. Jayamohan. "Behaviour of Prestressed Reinforced Foundation Beds Overlying Weak Soil." In Geo-Shanghai 2014. American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413401.039.

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Turner, E. L., J. Chevallier, and V. Rapoport. "Placement of Mat-Supported Jackup Rig on Very Weak Soil." In Offshore Technology Conference. Offshore Technology Conference, 1987. http://dx.doi.org/10.4043/5358-ms.

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Zaytsev, Andrey, Andrei Petriaev, and Laura Černiauskaite. "Track structure reconstruction practice for the subgrade on weak foundation soil." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.972.

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Vijay, Roshni, and K. Ramya. "Application of Sisal Fibre for the Improvement of Weak Subgrade Soil." In International Conference on Emerging Trends in Engineering & Technology (ICETET-2015). Research Publishing Services, 2015. http://dx.doi.org/10.3850/978-981-09-5346-1_ce-509.

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Sarač, Dino, Zhendong Li, Harkaman Gurung, and Alwalid Alekrish. "FINITE ELEMENT ANALYSIS OF WEAK ROCK UNDERCUT REINFORCED WITH SOIL NAILS." In GEO-EXPO. Društvo za geotehniku u Bosni i Hercegovini, 2018. http://dx.doi.org/10.35123/geo-expo_2018_19.

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Al-Mansob, Ramez A., Lim Yi Jia, Jamal M. A. Alsharef, et al. "Effects of carbon-nanotube and lime on the weak soil stability." In INTERNATIONAL CONFERENCE ON FOOD SCIENCE AND BIOTECHNOLOGY (FSAB 2021). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0073028.

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Syed, Z. I., N. I. Alkhatib, and Md Arifuzzaman. "Structural behavior of non-uniform mat foundation on weak sandy soil." In 4th Smart Cities Symposium (SCS 2021). Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/icp.2022.0375.

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Cramer, Chris H. "Comparing Weak- and Strong-Motion Spectral Ratios at the Turkey Flat Site Effects Test Area, Parkfield, California: Possible Nonlinear Soil Behavior." In Geotechnical Earthquake Engineering and Soil Dynamics Congress IV. American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40975(318)11.

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Reports on the topic "WEAK SOIL"

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Bishop, Megan, Jay Clausen, Samuel Beal, and Patrick Sims. Comparison of the quantitation of heavy metals in soil using handheld LIBS, XRFS, and ICP-OES. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47182.

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Handheld laser-induced breakdown spectroscopy (LIBS) is an emerging analytical technique that shows the potential to replace X-ray fluorescence spectroscopy (XRFS) in the field characterization of soils containing heavy metals. This study explored the accuracy and precision of handheld LIBS for analyzing soils containing copper and zinc to support LIBS as a re-placement for XRFS technology in situ. Success was defined by handheld LIBS results that could be replicated across field analyzers and verified by inductively coupled plasma–optical emission spectrometry (ICP-OES). A total of 108 soil s
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Honegger. L51990 Extended Model for Pipe Soil Interaction. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010152.

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This program contributes to maintaining and improving the integrity and safety of existing pipelines with regard to ground movement hazards, and reducing the capital costs of new pipeline systems. The research program focused on the axial, lateral and complex loading of pipeline due to soil movements. It includes (1) a literature review: it presents significant issues related to modeling pipe-soil interaction with a focus to recent development since ASCE (1984); (2) axial loading: it includes a summary of the methods to estimate the axial soil forces on pipeline and recent field measurements o
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Christoforidou, Eirini, Antonio Bobet, Tommy Nantung, and Philippe L. Bourdeau. Use of Geosynthetics on Subgrade and on Low and Variable Fill Foundations. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317437.

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There are significant problems during construction to establish an adequate foundation for fills and/or subgrade for pavements when the natural ground has low-bearing soils. Geosynthetics such as geogrids, geotextiles, and/or geocells could provide a less time-consuming, costly alternative for establishing an adequate foundation for the fill and/or subgrade. There is extensive evidence in the literature and on DOTs practices about the suitability of using geotextiles in pavements as separators. Previous studies have also shown that the use of geogrids in flexible pavements as a reinforcing mec
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Wang, Yao, Jeehee Lim, Rodrigo Salgado, Monica Prezzi, and Jeremy Hunter. Pile Stability Analysis in Soft or Loose Soils: Guidance on Foundation Design Assumptions with Respect to Loose or Soft Soil Effects on Pile Lateral Capacity and Stability. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317387.

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The design of laterally loaded piles is often done in practice using the p-y method with API p-y curves representing the behavior of soil at discretized points along the pile length. To account for pile-soil-pile interaction in pile groups, AASHTO (2020) proposes the use of p-multipliers to modify the p-y curves. In this research, we explored, in depth, the design of lateral loaded piles and pile groups using both the Finite Element (FE) method and the p-y method to determine under what conditions pile stability problems were likely to occur. The analyses considered a wide range of design scen
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Litaor, Iggy, James Ippolito, Iris Zohar, and Michael Massey. Phosphorus capture recycling and utilization for sustainable agriculture using Al/organic composite water treatment residuals. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600037.bard.

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Objectives: 1) develop a thorough understanding of the sorption mechanisms of Pi and Po onto the Al/O- WTR; 2) determine the breakthrough range of the composite Al/O-WTR during P capturing from agro- wastewaters; and 3) critically evaluate the performance of the composite Al/O-WTR as a fertilizer using selected plants grown in lysimeters and test-field studies. Instead of lysimeters we used pots (Israel) and one- liter cone-tainers (USA). We conducted one field study but in spite of major pretreatments the soils still exhibited high enough P from previous experiments so no differences between
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VanderGheynst, Jean, Michael Raviv, Jim Stapleton, and Dror Minz. Effect of Combined Solarization and in Solum Compost Decomposition on Soil Health. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7594388.bard.

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In soil solarization, moist soil is covered with a transparent plastic film, resulting in passive solar heating which inactivates soil-borne pathogen/weed propagules. Although solarization is an effective alternative to soil fumigation and chemical pesticide application, it is not widely used due to its long duration, which coincides with the growing season of some crops, thereby causing a loss of income. The basis of this project was that solarization of amended soil would be utilized more widely if growers could adopt the practice without losing production. In this research we examined three
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Clausen, Jay, Michael Musty, Anna Wagner, Susan Frankenstein, and Jason Dorvee. Modeling of a multi-month thermal IR study. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41060.

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Inconsistent and unacceptable probability of detection (PD) and false alarm rates (FAR) due to varying environmental conditions hamper buried object detection. A 4-month study evaluated the environmental parameters impacting standoff thermal infra-red(IR) detection of buried objects. Field observations were integrated into a model depicting the temporal and spatial thermal changes through a 1-week period utilizing a 15-minute time-step interval. The model illustrates the surface thermal observations obtained with a thermal IR camera contemporaneously with a 3-d presentation of subsurface soil
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Edwards, Lulu, Charles Weiss, J. Newman, Fred Nichols, L. Coffing, and Quint Mason. Corrosion and performance of dust palliatives : laboratory and field studies. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42125.

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This report details laboratory and field experiments on BioPreferred® dust suppressants to assess performance and corrosion characteristics. Numerous bio-based dust suppressant products are marketed, but little data are available to assess performance for dust abatement and corrosion of common metals. A laboratory study used an air impingement device and the Portable In-Situ Wind ERosion Laboratory (PI-SWERL) to simulate wind speeds similar to those in field conditions for rotary wing aircraft. Laboratory corrosion studies used metal coupons imbedded in soil treated with dust palliative. Field
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Garcia, Lyan, James Rowland, and Jeb Tingle. Evaluation of geocell-reinforced backfill for airfield pavement repair. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42550.

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After an airfield has been attacked, temporary airfield pavement repairs should be accomplished quickly to restore flight operations. Often, the repairs are made with inadequate materials and insufficient manpower due to limited available resources. Legacy airfield damage repair (ADR) methods for repairing bomb damage consist of using bomb damage debris to fill the crater, followed by placement of crushed stone or rapid-setting flowable fill backfill with a foreign object debris (FOD) cover. While these backfill methods have provided successful results, they are heavily dependent on specific m
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