›› 2011, Vol. 32 ›› Issue (5): 1485-1490.

• Geotechnical Engineering • Previous Articles     Next Articles

Three-dimensional stability study of semi-deterministic blocks in complex rock high slope

ZHONG Wei1, 2, YANG Tao 3, KONG Ji-ming1, 2   

  1. 1. Key Laboratory of Mountain Hazards and Surface Process , Chinese Academy of Sciences, Chengdu 610041, China; 2. Institute of Mountain Hazards and Environment of Water Resources, Chinese Academy of Sciences, Chengdu 610041, China; 3. Department of Geotechnical Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2010-01-15 Online:2011-05-10 Published:2011-09-23

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Abstract: Preferred structural plane combinations are determined by using stereographic projection principle in the engineering geology to statistically analyze the strike-dip of structural surfaces. And to the uncertain position surfaces, they are searched by a certain distance. Then, the kinematic analysis of every combination block is done by kinematic analysis method; and the blocks that can slide out from slope body are finally gained. Combined with three-dimensional rigid limit equilibrium method, the stability factor of each block in different cases is calculated; and the most dangerous slip body is found. Furthermore, the stability evaluation is done. This method is verified by case study. The results show that this method of analyzing complex rock slope combined engineering geology with kinematic analysis and rigid limit equilibrium method can improve the accuracy of slope stability assessment. The results provide a good guidance for slope design and stability analysis

Key words: rock high slope, semi-deterministic block, three-dimensional stability；Jinping I hydropower station

CLC Number: 

  • TU 457
[1] FENG Yu-bo ，LI Nai-yuan ，CHI Yan-zhi ，LIU Xiao-bin,. Design and stability analysis of reinforced high rock slopes [J]. , 2006, 27(S1): 958-960.
[2] SUN Zong-jun ，CHI Yan-zhi ，LI Nai-yuan ，LIU Xiao-bin，. Stability analysis of high rock slope with FLAC [J]. , 2006, 27(S1): 737-740.
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