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Volume 37 Issue 5
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LI Bin, WANG Guo-zhang, FENG Zhen, WANG Wen-pei. Limit equilibrium and stability analysis of steep stratified rock slope[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 839-846. DOI: 10.11779/CJGE201505009
Citation: LI Bin, WANG Guo-zhang, FENG Zhen, WANG Wen-pei. Limit equilibrium and stability analysis of steep stratified rock slope[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 839-846. DOI: 10.11779/CJGE201505009
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Limit equilibrium and stability analysis of steep stratified rock slope

  • 1.Key Laboratory of Neotectonic Movement and Geohazard, Ministry of Land and Resources, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China; 2. Shanghai Jiao Tong University, Shanghai 200240, China; 3. China Institute of Geological Environment Monitoring, Beijing 100081, China

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  • Received Date: July 06, 2014
  • Published Date: May 19, 2015
    Graphical Abstract
    • Abstract
  • With regard to the obvious three-dimensional characteristics for most natural stratified rock landslides, based on the two-dimensional derivation method for toppling-failure limit equilibrium considering three-dimensional stress state of stratified rock slope, simplification and equivalence are carried out of three-dimensional force system, and the toppling analysis method for three-dimensional stress is proposed. In the analysis of toppling limit equilibrium considering apparent dip, the stratified rock slope can be seen as cantilever beams. The landslide of Chongqing Jiguanling is taken as an example for verification and analysis. The calculated results show that: (1) Under the natural state, Jiguanling slope is in a stable state; (2) Under the underground mining state, overburden rocks of Jiguanling coal seam show toppling and failure layer by layer, and extrude the underlying anti-skid key blocks, leading to landslide after shear and failure of key blocks. The analysis results are basically consistent with the actual situation.
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    • References (19)
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