喜口池隧道穿越煤矿采空区段稳定性分析与研究

Analysis and Study on Stability When Xikouchi Tunnel Excavated Through Mine Goaf

文章以重庆奉节至巫溪高速公路重点控制工程——喜口池隧道为研究对象。在对采空区基本特征与地表残余变形分析的基础上,对隧道采空区影响段围岩的稳定性进行了评价。与此同时,根据该高速公路隧道穿越煤矿采空区段与采空区所在的空间位置,利用数值模拟软件研究了隧道与采空区所在的空间位置对隧道稳定性的影响,从而为喜口池隧道的安全施工提供一定的理论依据。

Taking the Xikouchi Tunnel-the key control project of the Chongqing Fengjie-Wuxi Expressway as the study object,base on the analysis on the basic features of the goaf and the surface ground residual deformation,an evaluation was conducted on the goaf section affected to the stability of the surrounding rock in the tunnel.Meanwhile,according to the tunnel passed through the mine goaf section and the mine goaf location in the expressway,the numerical simulation software was applied to study the space location of the tunnel and goaf affected to the stability of the tunnel,which could provide the certain theoretical basis to the safety construction of the Xikouchi Tunnel.