【摘要】 在水工隧洞施工中,由于地质、施工、设计、管理等原因都可能造成隧洞塌方,塌方的隧洞若不能及时得到处理,会使事故进一步扩大,带来更大的安全隐患,使工程延期,投资增大。经过对多松多水电站引水隧洞塌方冒顶形成原因分析,针对塌方段的围岩压力、地下水压力的实际情况,提出了超前管棚、固结灌浆、拱架支护、混凝土喷护等方法相结合的处理方案,并提出了预防措施,为类似工程设计、施工及塌方处理提供了参考。更多还原

【Abstract】 Through analyzing the causes of water diversion tunnel collapse of Duosongduo Hydropower Station,we put forward the treatment measures including pipe shed support in advance,consolidation grouting,arch support and concrete protection aiming at the surrounding rock pressure and the groundwater pressure,and also propose preventive measures,which provide references for the engineering design,construction and collapse treatment of similar projects.更多还原