秦岭Ⅰ号隧道围岩压力的理想弹塑性分析  

UNEARTHLY ELASTIC-PLASTIC ANALYSIS OF No. 1 QINLING TUNNEL'S COUNTRY ROCK PRESSURE

作　　者：李珂[1] 李晓辉[1] 范文[1] 

机构地区：[1]长安大学地质工程与测绘工程学院地质工程系,陕西西安710054

出　　处：《地球与环境》2005年第B10期115-118,共4页Earth and Environment

摘　　要：影响洞室稳定性的因素很多,但岩体自身的受力情况是至关重要的。在不考虑支护反力的条件下,将弹塑性应力半径作为变量,分析秦岭Ⅰ号隧道弹塑性区应力随半径的变化规律,为隧道的施工及支护提供参考。The factors affecting the stability of underground tunnels are numerous, but the stress within rock itself is very important. By taking it into no consideration the repugnant forces for safety support conditions and regarding elastic-plastic stress radius as being variable, the interaction between the elastic-plastic stress of No. 1 Qinling tunnel and the stress radius is deduced through an analytical method, providing some reference for tunnel construction and safety support.

关 键 词：地下工程 弹塑性 应力半径 原岩应力 隧洞稳定性 施工支护 

分 类 号：TU457[建筑科学—岩土工程]