反倾岩质边坡变形破坏的节理有限元模拟计算

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Abstract The topping failure of rock slope in geological environment is a widespread phenomenon，which is particularly important to predict the response by means of simulation method scientifically. Based on the shear strength reduction of jointed finite element method(JFEM-SSR)，the deformation and damage mechanisms of the topping rock slope are researched. The rock block and joints attributes can be considered at the same time by JFEM-SSR method；and nonlinear contact relation of rock layer or rock block can also be reflected fully. In the process of obtaining the stress，displacement and plastic zone of slope，the stability factor can be got. Firstly，a toppling failure examples provided by R. E. Goodman and J. W. Bray is calculated，proving the reliability of the method. Then，based on JFEM，discrete fracture network(DFN) is used to establish geological model of a cutting slope on Guangle highway，applying JFEM to analyze the deformation and failure mechanisms，influencing factors for stability. Influences of groundwater seepage，earthquake action，dip angle of rock stratum and the rock face thickness on the deformation and failure of slope are mainly discussed，so as to provide a basis for engineering design.

Key words： slope engineering jointed finite element method(JFEM) topping rock slope deformation mechanism joint network model software PHASE2

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	Articles by authors
	WANG Yu1
	2
	LI Xiao1
	WANG Mengyao3
	LI Ming3
	TIAN Hao3

Cite this article:

WANG Yu1,2,LI Xiao1, et al. FAILURE MECHANISM OF TOPPING ROCK SLOPE USING JOINTED FINITE ELEMENT SIMULATION METHOD[J]. , 2013, 32(s2): 3945-3953.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3945

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