边坡强度参数非等比例相关联折减法研究

doi:10.13722/j.cnki.jrme.2014.1216

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Abstract In order to overcome the insufficiency of the existing double reduction factors method to determine the double safety factors and based on the assumption that the distribution of the strength parameters obeys linear attenuation，the non-proportional relationship between the reduction factor of cohesion and the reduction factor of internal friction angle is deduced. Then we introduce this relationship into conventional strength reduction FEM，and propose strength parameters non-proportional associated reduction FEM. Then strength parameters non-proportional associated reduction FEM based on field variable is realized by using finite element software ABAQUS，thus the efficiency of calculation is improved in the determination of double safety factors. In order to evaluate the slope stability，comprehensive safety factor is proposed. The safety factor is based on shear strength parameters contributing to the resistant shear force. Finally，combined with an example and the comparative analysis of the position of slip surface and the comprehensive safety factor in three kinds of different reduction ways，the rationality and reliability of the method was verified.

Key words： slope engineering softening characteristics double reduction factors strength reduction

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	Articles by authors
	XUE Haibin1
	DANG Faning1
	YIN Xiaotao2
	YANG Chao1
	YAN Fei3

Cite this article:

XUE Haibin1,DANG Faning1,YIN Xiaotao2, et al. RESEARCH ON METHOD OF SLOPE STRENGTH PARAMETERS NON-PROPORTIONAL ASSOCIATED REDUCTION[J]. , 2015, 34(S2): 4005-4012.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1216 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4005

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