西藏扎墨公路嘎隆拉隧道地应力测试分析  

Measurement and Analysis of In-situ Stresses for Galongla Tunnel on Zamo Highway in Tibet

作　　者：艾凯[1] 李永松[1] 尹健民[1] 

机构地区：[1]长江科学院水利部岩土力学与工程重点实验室,武汉430010

出　　处：《现代隧道技术》2009年第5期28-32,共5页Modern Tunnelling Technology

基　　金：国家自然科学基金委员会;二滩水电开发有限责任公司雅砻江水电开发联合研究基金重点项目(50639090)

摘　　要：为了确定西藏扎墨公路嘎隆拉隧道围岩应力状态,作者利用水压致裂法在隧道进出口部位进行了地应力测量,并通过有限元回归分析,预测了整条隧道岩体应力分布;最后从地应力角度,分析和预测了隧道沿线的岩爆情况。In order to determine the stress state of the surrounding rocks of Galongla tunnel on Zamo highway in Tibet, in-situ stress measurements by hydro-fracturing method were carried out on the exit section of the tunnel. The stress distribution in the whole rock mass including the major project location was obtained through FE regression analysis. The possibility of rockburst along the tunnel axis is discussed based on the data of in-situ stresses.

关 键 词：嘎隆拉隧道 地应力测试 回归分析 岩爆 

分 类 号：U452.12[建筑科学—桥梁与隧道工程]