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Volume 35 Issue 6
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XIAO Rui-hua, WANG Si-jing, HE Xiao-hei, ZHANG Xiao-ping, RAO Xiao-yu, LUO Bin. Multi-level stability analysis of inhomogeneous slopes[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(6): 1062-1068.
Citation: XIAO Rui-hua, WANG Si-jing, HE Xiao-hei, ZHANG Xiao-ping, RAO Xiao-yu, LUO Bin. Multi-level stability analysis of inhomogeneous slopes[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(6): 1062-1068.
shu

Multi-level stability analysis of inhomogeneous slopes

  • 1. Key Laboratory of Engineering Geomechanics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China; 3. School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore; 4. Chongqing Communications Research & Design Institute Co., Ltd., Chongqing 400067, China

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  • Received Date: August 26, 2012
  • Published Date: June 19, 2013
    Graphical Abstract
    • Abstract
  • In order to make a clearer description for assessing the overall steady state of an inhomogeneous slope, a multi-level method based on strength reduction is proposed. Initially, the multi-level potential slip surfaces can be found by using the local strength reduction of the rock mass at different depths or different strata, then, the slope stability analysis using the limit equilibrium method is conducted for each potential failure surface. Finally, the slope stability coefficients at various depths and levels can be obtained. This method makes full use of the objectivity advantage of strength reduction and avoids the subjectivity disadvantage of the limit equilibrium method in the course of determining multi-level potential slip surfaces. The slip surfaces obtained by this method can better reflect the failure process of slopes under the action of gravity than those by other methods. The results by the proposed method are better than those by the arc method. A case study proves that this method is effective for the comprehensive stability analysis of the inhomogeneous slope, and that it can provide guidance for the treatment, monitoring design and construction of slopes.
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    • References (20)
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