Study on the Attenuation Mechanism of Unsaturated Residual Soil Under Rainfall Condition -A Case Study of the Tiller and Sediment Soil in Qishan Landslide, China
American Journal of Civil Engineering
Volume 5, Issue 4, July 2017, Pages: 242-253
Received: Aug. 13, 2017; Published: Aug. 14, 2017
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Authors
Liu Junzhe, Engineering Faculty, China University of Geosciences (Wuhan), Wuhan, China
Zuo Changqun, Engineering Faculty, China University of Geosciences (Wuhan), Wuhan, China
Song Yingjie, Engineering Faculty, China University of Geosciences (Wuhan), Wuhan, China
Ren Rui, Engineering Faculty, China University of Geosciences (Wuhan), Wuhan, China
Li Zi, Engineering Faculty, China University of Geosciences (Wuhan), Wuhan, China
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Abstract
In the most area of the Southern part in China, the high-intensity and large-scale rainfalls would easily cause some natural disasters like landslide and mud slide in the area of which the geological conditions are not stable and could lead to mass casualty and a great loss in economy. The paper targets the tuff residual soil in Qishan, Yongtai city, Fujian Province of China as the investigated subject, getting the mineral composition of the soil mass through X-ray experiment, analyzing the micro structure and mineral compositions in soil mass in qualitative, getting the parameters of shear strength of the soil mass by taking quadruple shear test to the soil samples which were in different level of water content and wet-dry cycle times, making analysis to the micro structure of test samples by using electrical scanning, and using the Matlab software to make calculation about the micro-structural parameters to analyze it in quantitative and forming the fitting relations among water content, wet-dry cycle times, vertical load and micro-structural parameters of soil mass so that the intensity attenuation mechanism of the unsaturated residual soil under the condition of rainfall would be revealed.
Keywords
Residual Soil Slope, Microstructure, Scanning Electron Microscope, Shear Strength, Intensity Attenuation Mechanism
To cite this article
Liu Junzhe, Zuo Changqun, Song Yingjie, Ren Rui, Li Zi, Study on the Attenuation Mechanism of Unsaturated Residual Soil Under Rainfall Condition -A Case Study of the Tiller and Sediment Soil in Qishan Landslide, China, American Journal of Civil Engineering. Vol. 5, No. 4, 2017, pp. 242-253. doi: 10.11648/j.ajce.20170504.18
References
[1]
Shiyi Yang. The research of landslide prediction and landslide classification system [D]. Wuhan: Wuhan university of science and technology. 2010.
[2]
Huang Runqiu. The greatest landslide research and their occurrence mechanism since 20th century [J]. Chinese journal of rock mechanics and engineering, 2007, 26 (3): 433-454.
[3]
Ma Deyi. Analysis of a double-layer heterogeneous loess landslide occurrence mechanism and its controlling measures [D]. Xi’an: Xi’an University of Technology. 2014.
[4]
Shao Lianfen, Peng Zuwu, Wang Shuonan, ect. A classification of the launching mode in Luanchuan landslide under storm [J]. Journal of Mountain Science. 2013. 31 (3): 334-341.
[5]
Cruden DM, Varnes DJ. Landslide types and processes. Landslides, investigation and mitigation. 1996.
[6]
Hoek E, Bray J W. Rock Slope Engineering. 1981.
[7]
Zhou Xin. The research of high-speed remote landslide air cushion effect caused by earthquake [D]. Shanghai: Shanghai Jiaotong Univeristy. 2010.
[8]
Erismann, TH, Abele, G. Dynamics of rockslides and rockfalls. 2001.
[9]
Xin Aiguo, Gao Guangyun, Chen Longzhu. The research of hydrokinetics mechanism in high-speed landslide [J]. Chinese journal of rock mechanics and engineering. 2004. 23 (4): 607-613.
[10]
He Xuwen. Analysis of rock slope stability based on discrete unit method [D]. Xiangtan: Xiangtan University. 2010.
[11]
Xu Jiancong, Shang Yuequan. The mechanism of disintegration and deformation of debris landslide under rainfall condition [J]. Rock and Soil Mechanics. 2008. 29 (1): 106-112.
[12]
Xu Jiancong. The stability and failure mechanism of deformation and disintegration of debris soil landslide [D]. Hangzhou: Zhejiang University. 2005.
[13]
Cheng Qiangong, Hu Houtian, Peng Jianbing. The mechanism of lateral locking plane rotary landslide dynamic [J]. Chinese journal of rock mechanics and engineering. 2000. 19 (5): 634-639.
[14]
Cheng Qiangong. High-speed rock landslide dynamics [D]. Chengdu: Southwest Jiaotong University. 1999.
[15]
Liang Xiaoyong, Xue Xiaohui, Wang Humei, Creep characteristics of rock time hardening damage [J]. Journal of Liaoning Technical University (Natural Science), 2013. 32 (4): 509-512.
[16]
Shi Beixiao. Specific analysis of rock slope in landslide zone with shear tests [D]. Xi’an: Xi’an University of Technology. 2009.
[17]
Wu Yixiang. Qualitative analysis on engineering clayey soil microstructure [J]. The Journal of Chinese Academy of geological sciences.1991.23 (2): 143-151.
[18]
Shi Bin, Li Lin, The qualitative research of clayey soil in SEM images [J]. Science in China: A Edition.1995. 25 (6): 666-672.
[19]
Xiao Shufang, Aquino K. The structure and strength changing features of mudding catation [M]. Changchun: Jilin Science and technology publishing house, 1991.
[20]
Xie, Heping. The application of fractal geometry in soil and rock mechanics [J]. Rock and Soil Mechanics, 1992, 14 (1): 14-24.
[21]
Hu Ruilin. The quanlitative model of clayey soil microstructure and its engineering geological features [M], Beijing: Geological Publishing House, 1995.
[22]
Wang Qing, Wang Jianping. The fractal geometry research of soil pores [J], Chinese Journal of Geotechnical engineering, 2000, 22 (4): 496-498.
[23]
Wang Baojun, Wang Jianping, Liu Zhibin, ect. The fractal research of soil microstructure based on GIS [J], Chinese Journal of Geotechnical engineering, 2004, 26 (2): 244-247.
[24]
Shi Bin, Li Li, Jiang Hongtao ect. The application of DIPIX Image Processing System in soil microstructure qualitative research [J]. The journal of Nanjing University. 1996. 32 (2): 275-280.
[25]
Qiu Guorong. The mechanism of microstructure controlling in loess subsidence deformation [D]. Lanzhou: Chinese seismological bureau, Lan zhou research institution. 2010.
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