边坡下滑推力计算的有限元法

doi:10.13722/j.cnki.jrme.2017.0179

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Abstract

Calculation of landslide thrust is always a key problem in reinforcing design of slopes. Currently，there is an inconsistency issue existing in Chinese technical code for building slope engineering with regard to the thrust calculation using the transfer coefficient method，which is largely caused by the inaccurate assumption about the stress state of a slope. Aiming to overcome this issue，a new method considering the vector characteristics of sliding and anti-sliding forces was proposed and adopted to calculate the residual sliding force of a local potentially sliding body. Not only the sliding force but also the sliding direction of a potentially unstable slope can be evaluated by the proposed method. Several examples were illustrated and the calculated results of the safety factor of slopes were in good agreement with the rigorous limit equilibrium method. Finally，the proposed method was applied to analyze a typical fold line slope of Zhangmu town，in the Tibet of China，and the residual sliding force calculated by the proposed method also agrees well with the result from the transfer coefficient method.

Key words： slope engineering sliding force finite element method vector integral transfer coefficient method safety factor

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	Articles by authors
	LIU Sujin1
	2
	GUO Mingwei1
	LIU Caihua1

Cite this article:

LIU Sujin1,2,GUO Mingwei1, et al. Calculation of residual sliding force of slope based on finite element method[J]. , 2017, 36(S2): 4054-4065.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0179 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS2/4054

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