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Experimental Investigation and Sensitivity Analysis for the Effects of Fracture Parameters to the Conductance Properties of Laterite
Abstract:This experiment discusses the effects of fracture parameters such as depth, length, width, angle and the number of the fracture to the conductance properties of laterite using the DUK-2B digital electrical measurement system combined with the method of simulating the fractures. The results of experiment show that the changes of fracture parameters produce effects to the conductance properties of laterite. There is a clear degressive period of the conductivity of laterite during increasing the depth, length, width, or the angle and the quantity of fracture gradually. When the depth of fracture exceeds the half thickness of the soil body, the conductivity of laterite shows evidently non-linear diminishing pattern and the amplitude of decrease tends to increase. The length of fracture has fewer effects than the depth to the conductivity. When the width of fracture reaches some fixed values, the change of the conductivity is less sensitive to the change of the width, and at this time, the conductivity of laterite maintains at a stable level. When the angle of fracture is less than 45°, the decrease of the conductivity is more clearly as the angle increases. But when angle is more than 45°, change of the conductivity is relatively gentle as the angle increases. The increasing quantity of the fracture causes the other fracture parameters having great impact on the change of conductivity. When moisture content and temperature were unchanged, depth and angle of fractures are the major factors affecting the conductivity of laterite soil; quantity, length, and width are minor influencing factors. The sensitivity of fracture parameters affect conductivity of laterite soil is: depth >angles >quantity >length >width.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1071950Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1306
 Archie G E, The electric resistivity log as aid in determining some reservoir characteristics. Transaction, American Institute of Mining, Metallurgical and Petroleum Engineers, vol.146.pp.54-61. 1942.
 Smith S S, Arulanandan K. Relationship of electrical dispersion to soil properties. Journal of Geotechnical Engineering. Division, ASCE, vol.107(5).pp.591-604. 1981.
 Kalinski R, Kelly W. Electrical-resistivity measurements for evaluating compacted soil liners. Journal of Geotechnical Engineering, ASCE, vol.120(2). pp.451-457. 1994.
 Campanella R G, Weemees I. Development and use of an electrical resistivity cone for groundwater contamination studies.Canadian Geotechnical Journal, vol. 27.pp.557-567. 1990.
 Dong Xiao-qiang Bai Xiao-hong and Zhao Yong-qiang. Testing for soil-cement polluted by H2SO4 solution using electrical method. Chinese Journal of Environmental Engineering, vol.1(11) .pp.124-127. 2007.
 LIU Song-yu, HAN Li-hua, and DU Yan-jun, Experimental study on electrical resistivity of soil-cement Chinese Journal of Geotechnical Engineering, vol. (11) .pp.592-597. 2006.
 ZHA Fu-sheng, LIU Song-yu, and DU Yan-jun, Evaluation of physicochemical process in stabilized expansive soils using electrical resistivity method. Rock and Soil Mechanics, vol.30(6) .pp.1711-1718. 2009.
 Arulmoli K, Arulanandan K, and Seed H B, New method for evaluating liquefaction potential.Journal of Geotechnical Engineering Division, ASCE, vol.111(1) .pp.95-114. 1985.
 Fukue M, Minato T, Horibe H, and Taya N. The micro-structures of clay given by resistivity measurements.Engineering Geology, vol.54.pp.43-53. 1999.
 ZHA Fu-sheng, LIU Song-yu, DU Yan-jun, Quantitative assessment on change in microstructure of loess during collapsing using electrical resistivity measurement. Rock and Soil Mechanics, vol.31(6) .pp.1692-1697. 2010.
 TAN Luo-rong ,KONG Ling-wei. Special Geotechnical Engineering Soil. Beijing: Science Press, 2006.
 ZHAO Ying-wen, KONG Ling-wei, GUO Ai-guo, and TUO Yong-fei.Mechanical behaviors and water-sensitive properties of intact Guangxi laterite. Rock and Soil Mechanics, vol. 24(4) .pp. 568-572. 2003.
 KONG Ling-wei, CHEN Jian-bin, and GUO Ai-guo, Field response tests on expansive soil slopes under atmosphere. Rock and Soil Mechanics, vol.29(7) .pp.1065-1073. 2007.
 FANG Kai-tai. Uniform design and uniform design table.Beijing: Science Press, 1994.
 Zhai Guo-fu, Fan Wei-wei, and Liang Hui-min. An Optimization Method for the Contact Slip Length of Space Electromagnetic Relay Based on Uniform Experimental Design. Transactions of China Electrotechnical Society, vol.24(10) .pp.59-64. 2009.
 TANG Hua, SHI Guicai,GE Xiurun, . Application of Uniform Design to Displacement Back Analysis in Underground Engineering Chinese Journal of Rock Mechanics and Engineering, vol.25(10) .pp.2017-2022. 2006.
 JIANG Hua-yi, WEI Ai-jun, and HUANG Li. Study on the law of microwave demulsification dehydration using uniform design method. Journal of Xi an Shiyou University(Naturnal Science Edition), vol.21(1) .pp.39-41. 2006.
 Dasog G S, Shashidhara G B. Dimensional and volume of cracks in a Vertisol under different crop covers. Soil Sci, vol.156.pp. 424-428. 1993.
 Ringrose-Voase A J, Sanidad W B. A method for measuring the development of surface cracks in soils application to crack development after lowland rice .Geoderma, vol.71.pp.245-261. 1996.
 YI Shun-min, LI Zhi-heng, and ZHANG Yan-zhong. The fractal characteristics of fractures in expansion soil and its significance.Chinese Journal of Geotechnical Engineering, vol.21(3) .pp.294-298. 1999.
 TANG Chao-sheng, SHI Bin, and LIU Chun,Developing law and morphological analysis of shrinkage cracks of clayey soil under different temperatures.Chinese Journal of Geotechnical Engineering, vol.29(5) .pp.743-749. 2007.
 MA Jia, CHEN Shan-xiong, and YU Fei, Experimental research on crack evolution process in fissured clay . Rock and Soil Mechanics, vol.28(10) .pp.2203-2208. 2007.
 CHEN Zheng-han, FANG Xiang-wei, and ZHU Yuan-qing, Research on meso-structures and their evolution laws of expansive soil and loess. Rock and Soil Mechanics, vol.30(1) .pp.1-11. 2009.