›› 2017, Vol. 38 ›› Issue (S1): 151-157.doi: 10.16285/j.rsm.2017.S1.017

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Directional simulation of failure probability of rock slope wedge

ZHU Yong1, ZHOU Hui1, FENG Xia-ting1, ZHANG Chuan-qing1, ZHANG Ming-qiang2, YANG Fan-jie1   

  1. 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China; 2. Zhejiang Provincial Institute of Communications Planning, Design & Research, Hangzhou, Zhejiang 310006, China;
  • Online:2017-06-22 Published:2018-06-05
  • Supported by:

    This work was Supported by the National by Basic Research Program of China (973 Program) (2014CB046902) and the National Natural Science Foundation of China (51279201).

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Abstract: Directional simulation method is proposed to calculate the small probability of slope failure. Algorithms of directional simulation and wedge safety factor are introduced and programmed. The direction simulation results and the importance sampling respectively, compare the calculation results with the subset simulation analysis. The results show that the directional simulation method can be used to calculate the small probability of slope failure as the same with subset simulation method. And directional simulation method can get enough accuracy by a small number of sampling, which means more efficiency than the other two methods.

Key words: wedge slope, directional simulation, small failure probability, reliability index

CLC Number: 

  • TU 473

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