瀑布沟水电站泄洪洞开挖变形和稳定性分析  

Excavation Deformation and Stability Ana lysis of Spillway Tunnel of Pubuguo Hydr opower Station

作　　者：滕丽[1] 张建海[1] 刘会娟[1] 裴建良[1] 向俐蓉[1] 

机构地区：[1]四川大学水电学院,四川成都610065

出　　处：《水电站设计》2003年第2期18-22,共5页Design of Hydroelectric Power Station

摘　　要：瀑布沟水电站泄洪洞右侧壁最小厚度仅约10 0m,左侧山体高达100 0m,隧洞偏压问题突出。本文采用非线性有限元法,研究隧洞在开挖过程中,边坡的稳定性和隧洞的偏压应力。The minimum depth of the spillway tunnel from the slope s urface on the right side is only 10m whi le on the spillway left side the mountia n has a height of 100m.Therefore,the in situ stress on the right side of the spi llway tunnel is much higher than that on the left side.In this paper stability o f the slope and unbalanced side pressure of the spillway tunnel during its excav ation are studied by using nonlinear fin ite element method.

关 键 词：瀑布沟水电站 泄洪洞 开挖 变形 稳定性 隧洞 非线性 

分 类 号：TV223[水利工程—水工结构工程]