黄河大柳树水利枢纽非均质岩体初始地应力场反分析与应用  

The back analysis on initial stress field within the heterogeneous rock mass around the Daliushu Hydro project on the Yellow River and its application

作　　者：薛玺成[1] 孙湄[1] 薛乾印[1] 

机构地区：[1]天津大学

出　　处：《水利水电工程设计》1999年第3期3-6,共4页Design of Water Resources & Hydroelectric Engineering

摘　　要：隧洞围岩稳定分析所需的荷载边条是地应力场。依实测地应力值和地勘资料，用数值计算和回归分析方法求解的地应力场。切取隧洞工程分析所需的计算域， 在域边界上施加所求的地应力荷载， 对隧洞围岩的位移、应力和破坏区进行分析。The boundary condition of load required for stability analysis of a tunnel's adjoining rock is the initial stress field. On the basis of the practically observed values of ground stress and materials from geological survey, the initial stress field has been made out by means of methods of nubmerical calculation and regression analysis. At first, the calculated region has been fixed in accordance with the tunnel project to be analysed. Then the solved load of ground stress is applied on the boundary of the selected region. Finally, analyses on displacement, stress and failured zone in the tunnel's surrounding rock have been proceeded.

关 键 词：初始地应力 隧洞 非线性分析 水利枢纽 

分 类 号：TV223.1[水利工程—水工结构工程] TU457[建筑科学—岩土工程]