乌东德水电站左岸尾水出口陡倾顺向坡变形影响因素分析

doi:10.13722/j.cnki.jrme.2017.0012

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Abstract The slope located at the exit of left tail water tunnel of Wudongde hydropower station is a typical bedding slope with a high dip angle，and the deformation occurred in two stages during the excavation. The influences of the slope structure，the excavation at slope toe，the engineering blasting，the fault and the unloading on the slope deformation were studied with the field monitoring and the numerical simulation. The results show that the main reason of deformation is the cutting excavation at slope toe. In addition，the excavation of a tunnel with large cross section at slope toe and the excessive blasting increase the deformation. The small fault in the slope also affects the slope deformation to some extent. Therefore，it was suggested that excavation should be carried out after the slope supporting at the intersection region of tunnel and slope.

Key words： rock mechanics consequent slope deformation influence factors deformation monitoring geophysical detection Wudongde hydropower station

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	Articles by authors
	WANG Jiliang
	YANG Jing
	HAO Wenzhong
	HUANG Xiaoquan
	BAI Wei
	ZHANG Xiong
	WEI Yujun
	SONG Tao
	ZENG Li

Cite this article:

WANG Jiliang,YANG Jing,HAO Wenzhong, et al. Factors influencing deformation of steep consequent slopes at the tail water outlet on the left bank of Wudongde hydropower station #br#[J]. , 2017, 36(9): 2194-2204.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0012 OR http://www.rockmech.org/EN/Y2017/V36/I9/2194

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