裂隙破碎带水工隧洞支护参数优化模拟及现场试验分析

Simulation and Field Test Analysis of Supporting Parameters for Hydraulic Tunnels in Fractured Fractured Zone

对位于裂隙破碎带的水工隧洞支护结构及围岩进行数值模拟,通过调整支护结构参数模拟不同参数下隧洞支护结构的受力变形特性,从而确定一组优化参数既能保证结构的安全稳定又可满足经济性要求。并在实际隧洞施工中应用该组参数进行试验,通过监测数据进一步说明优化方案的先进性。

A numerical simulation of the supporting structure and surrounding rock of a hydraulic tunnel in a fractured zone is carried out.By adjusting the parameters of the supporting structure to simulate the stress and deformation characteristics of the tunnel supporting structure under different parameters,a set of optimal parameters can be determined not only to ensure the safety and stability of the structure,but also to meet the requirements of the full foot of the economy.Then,in the actual tunnel construction,the group parameters are applied to carry out the test,and the advanced nature of the optimization scheme is further illustrated by monitoring data.