考虑松动圈影响的引水隧洞应力及位移弹性分析

On water-diversion tunnel stress and displacement elastic analysis with consideration of broken rock zones

采用弹性力学理论,推导出圆形隧洞衬砌和围岩松动圈的应力及位移解析解,并以新疆某引水隧洞工程为背景,分析了平面应变、弹性情况下,衬砌及松动圈支护体内应力之差与位移分布规律,最终得出了一些有价值的结论。

The paper adopts the elastic dynamic theory,induces the stress and displacement analytical solution of the circular tunnel lining and broken rock zones of surrounding rock,based on some water-diversion tunnel in Xinjiang,analyzes the distribution law of the lining and inner stress of the broken rock zones under the plane stress and elastic circumstances,and achieves the valuable conclusion.