The Analysis of Stability of Surrounding Rock Inintersection Tunnel in Jinping Ⅱ Hydropower Station

Li Xusheng; Gao Bo; Shen Yusheng

doi:10.3969/j.issn.1007-2993.2009.05.006

Volume 23 Issue 5

Jul. 2021

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Li Xusheng, Gao Bo, Shen Yusheng. The Analysis of Stability of Surrounding Rock Inintersection Tunnel in Jinping Ⅱ Hydropower Station[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2009, 23(5): 242-245,250. doi: 10.3969/j.issn.1007-2993.2009.05.006

Citation:

Li Xusheng, Gao Bo, Shen Yusheng. The Analysis of Stability of Surrounding Rock Inintersection Tunnel in Jinping Ⅱ Hydropower Station[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2009, 23(5): 242-245,250. doi: 10.3969/j.issn.1007-2993.2009.05.006

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The Analysis of Stability of Surrounding Rock Inintersection Tunnel in Jinping Ⅱ Hydropower Station

doi: 10.3969/j.issn.1007-2993.2009.05.006

School of Civil Engineering, Southwest jiaotong university, Chengdu 610031, Sichuan, China

Received Date: 2009-07-30

Abstract

Abstract

The complex geological condition including great depth will bring about many engineering problems in Jinping Ⅱ Hydropower Station, so excavation of an main tunnel which is intersected with a tunnel can weaken the quality of surrounding rock(expecially in intersectoin). Considering deeply-rock, we analyzed the mechanical of stress release and redistribution in the surrounding rock using 3D elastic plasticity finite element numerical and model experiment, This study offers references for design of the monitoring system, construction scheme optimization, and safe control of deeply buried tunnels.
- intersection tunnel,
- finite element numerical analysis,
- model experiment,
- the analysis of stability of surrounding rock