喀斯特岩溶地区隧道施工塌方冒顶处理方案

The treatment scheme for collapse and roof fall of tunnel construction in Karst Area

喀斯特岩溶地区隧道建设地质条件复杂,岩溶塌方冒顶是施工中经常遇到的难题。通过喀斯特岩溶地区凤凰隧道塌方冒顶实例,对该隧道塌方冒顶的经过与原因进行了分析,提出了处置岩溶地区塌方冒顶的实施方案,方案行之有效,可供类似地区隧道、隧洞工程施工提供参考。

The geological conditions of tunnel construction in karst area are complex,and karst collapse and roof fall are often encountered in construction.Based on the example of collapse and roof fall of Fenghuang tunnel in karst area,this paper analyzes the process and causes of collapse and roof fall of the tunnel,and puts forward the implementation scheme for the treatment of collapse and roof fall in karst area.The scheme is effective and can provide reference for tunnel and tunnel engineering construction in similar areas.