地震荷载下三维边坡动力稳定性分析

doi:10.13722/j.cnki.jrme.2016.1241

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Abstract Dynamic stability analysis of slopes is a difficult problem in the field of geotechnical engineering. In order to apply the vector sum method(VSM) in dynamic stability analysis of a three-dimensional slope，a method which combines VSM with dynamic finite element method was developed，and an example of a three-dimensional uniform slope was analysed. The method was used to analyse the dynamic stability of two typical talus deposits. The dynamic analysis of the slope shows that the terrain has great effects on the dynamic response of the three-dimensional slope and that the absorption effect of talus deposit on the seismic wave is pretty obvious. Under the action of earthquake scale 6.5 (the peak acceleration is 0.2 g)，the average safety factors of talus deposit Q1 and Q2 are 1.47 and 1.23 respectively，while the minimum values are 1.33 and 1.18 respectively. The slope was thus considered stable under this seismic load.

Key words： slope engineering three-dimensional slope vector sum method(VSM) earthquake dynamic finite element method

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	Articles by authors
	ZOU Ye1
	2
	GUO Mingwei1
	WANG Shuilin1
	GE Xiurun1

Cite this article:

ZOU Ye1,2,GUO Mingwei1, et al. Dynamic stability analysis of three dimensional slopes under seismic loads#br#[J]. , 2017, 36(5): 1174-1184.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2016.1241 OR http://www.rockmech.org/EN/Y2017/V36/I5/1174

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