基于破裂度可靠性的边坡灾变状态评价方法研究

doi:10.13722/j.cnki.jrme.2015.0216

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Abstract Because of the heterogeneity of rock and soil medium，a slope disaster status evaluation method based on the fracture degree and its reliability is presented. The mean，variance and the distribution form of the rock and soil mechanical parameters based on experiments are used to generate sample. A random sample of geotechnical parameters accord with the certain probability distribution is obtained by the Latin hypercube sampling(LHS) method. Then a large number of numerical cases with different parameters are executed by continuous- discontinuous element method(CDEM)，and fracture degree of each case is obtained. Based on the law of large number，the probability of the status which reaches and exceeds the catastrophic status can be obtained. Based on the geometric model of Liangshuijing landslide，the relationship between fracture degree and the probability distribution of cohesion and inner friction angle is discussed，and the probability of integral sliding with given parameters is 60.7%.

Key words： slope engineering Latin hypercube sampling reliability fracture degree catastrophic status

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	Articles by authors
	GUO Rukun
	FENG Chun
	ZHOU Dong
	LI Shihai

Cite this article:

GUO Rukun,FENG Chun,ZHOU Dong, et al. Study on the evaluation method of slope disaster status based on the reliability of fracture degree[J]. , 2016, 35(S1): 3111-3118.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0216 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS1/3111

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