隧道围岩稳定性及安全性分析的位移判别方法

Displacement Method of Stability and Safety Analysis for Surrounding R ock of Tunnels

针对隧道围岩支护系统的稳定性和安全性问题,以及隧道围岩位移参数在隧道围岩稳定性及安全性中的重要作用,分析了隧道围岩位移的极限状态,建立了隧道围岩极限位移的确定方法和隧道围岩极限位移的判别准则。有助于构建隧道围岩稳定性分析的位移预测预报系统来解决这一复杂问题。

To counter the stability and safety of supporting system for surr ounding rock of tunnels as well as the important role of the displace ment parameters of tunnel surrounding rock in its stability an d safety,the authors gave analysis on the limit state of tunnel surrounding rock displacement and es tablished the method for determining the limiting displace-ment of tunnel surro unding rock and t he criteria for judging its limiting displacement,all of thes e are conductive to the set -up of forecast system of rock displacemen t for an alyzing tunnel sur-rounding rock stability and the reso lution of such complica ted problems with this forecast system.