考虑非饱和渗流过程的岩体变形规律分析

doi:10.13722/j.cnki.jrme.2018.0652

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Abstract

Abnormal deformation of valley in the initial impoundment period is a new problem of super high arch dam in China. It is urgent to study the deformation mechanism of rock mass from unsaturated seepage to saturated seepage. Based on the transition process of rock mass from unsaturated seepage to saturated seepage，the governing equations of rock mass under the interaction of unsaturated seepage and stress are derived. The hydraulic coupling model of unsaturated rock mass is established，and it is applied to the deformation analysis of cylindrical specimen and slope infiltration process. The results show that the change of saturation is one of the important factors causing the deformation of rock mass during the transition from unsaturated seepage to saturated seepage. The research results have important guiding significance for revealing the abnormal deformation mechanism of the dam and the mountain in the early stage of the storage of the super high arch dam.

Key words： rock mechanics unsaturated seepage pore water pressure hydro-mechanical coupling rock deformation

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	Articles by authors
	REN Qingwen1
	ZHANG Linfei2
	SHEN Lei2
	TAO Mei1

Cite this article:

REN Qingwen1,ZHANG Linfei2,SHEN Lei2, et al. Analysis of deformation law of rock mass considering unsaturated seepage process[J]. , 2018, 37(S2): 4100-4107.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.0652 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS2/4100

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