山体地形与地质结构面对地下洞室地震响应的影响研究

doi:10.13722/j.cnki.jrme.2016.0442

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Abstract

A simplified analysis model and complex models with consideration of the effects of topography，discontinuous geological plane were established and applied to the underground caverns of Dagangshan hydropower station under construction. The finite difference software FLAC is used for the seismic response analysis of surrounding rock mass of under ground caverns. The result shows that the mountain topography has some influences on seismic displacement and acceleration of upper surrounding rock mass，which mainly be imposed P-wave vibration loading. The effect of the weak structural plane which strengthening S-wave shear to the surrounding rock mass，is relatively remarkable on the earthquake response of caverns，and the effect zone of it is limited to vicinity of cutting surrounding rock mass. The effect regularity of the geological structural plane is different on earthquake waves with different frequency components.

Key words： rock mechanics Dagangshan hydropower underground cavern mountain topography geological structural plane seismic response

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	Articles by authors
	ZHU Zeqi1
	SHENG Qian1
	CHEN Zijing2
	LI Jianhe1

Cite this article:

ZHU Zeqi1,SHENG Qian1,CHEN Zijing2, et al. Influence of mountain topographic and geological structural plane on seismic response of rock cavern[J]. , 2017, 36(S1): 3509-3515.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0442 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS1/3509

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