滑动面力学参数对滑坡稳定性影响研究 ——以重庆武隆鸡尾山滑坡为例

doi:10.13722/j.cnki.jrme.2014.s2.061

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Abstract In order to investigate the influence of mechanical parameters of sliding plane，normal stiffness JKN，shearing stiffness JKS，internal friction angle ，and cohesion c，on the rockslide stability，the numerical simulations were conducted based on the orthogonal design method and 3D discrete element software 3DEC，the displacements concerning a monitoring point located in the front of sliding block were chosen as indicator in the orthogonal experiment. The analysis of variance shows that：(1) JKS and of sliding plane have a significant effect on the displacement of monitoring point along all of X，Y，and Z direction，as for the c and JKN，it seems that they have a limited influence on the displacement. (2) According to the influence degree on the rockslide stability，the order for 4 mechanical parameters may be arranged by JKS＞＞JKN＞c(for horizonal displacement)；JKS＞＞c＞JKN(for vertical displacement). The next research was focused on the most dangerous case among the 16 cases，in the initial stage of failure，for the horizontal displacement(EW)，the key block mainly moves to the east cliff due to the support from the rock mass，the amount of displacement for key block is much larger than that for driving block. For the horizontal displacement(SN) and vertical displacement，the displacement for driving block is bigger than that for key block. It can been seen that the key block slides down to the cliff following by driving block，numerical simulation results make a good agreement with the real situation.

Key words： slope engineering Jiweishan landslide orthogonal design stability evaluation

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	Articles by authors
	GE Yunfeng1
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	TANG Huiming1
	XIONG Chengren4
	WANG Liangqing1
	WU Yiping1

Cite this article:

GE Yunfeng1,2,3, et al. EFFECT OF SLIDING PLANE MECHANICAL PARAMETERS ON LANDSLIDE STABILITY——A CASE STUDY OF JIWEISHAN ROCKSLIDE IN WULONG，CHONGQING[J]. , 2014, 33(S2): 3873-3884.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.061 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/3873

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