岩溶隧道突水突泥预测预警技术研究

Research on prediction and early warning technology of water and mud inrush in karst tunnel

岩溶引发隧道灾害主要通过三种不同的机理实现,导致三类不同的灾害:其一是突水涌泥现象;其二是造成隧道失稳;其三是可能在隧道顶部底部或者两侧出现大型溶洞。其中突水突泥在岩溶隧道中属于非常常见的一种灾害,许多隧道在施工期间深受其害,通过对叙毕铁路新高坡隧道进行研究,探寻一种有效的针对岩溶隧道突水涌泥现象的系统措施,研究在隧道施工期间的突水突泥预测预警技术方面比较合适的方法。研究结果表明,在实际处理叙毕铁路新高坡岩溶隧道突水突泥时,新高坡隧道的三维估量探测技术及突水突泥灾害监控与智能预警软件平台系统,对岩溶段富水段突水突泥预测预警有较好的参考作用。

Karst-induced tunnel disasters are mainly realized through three different mechanisms,resulting in three different disasters:one is the phenomenon of water inrush and mud gushing.The second is to cause tunnel instability.Third,large karst caves may appear at the top,bottom or both sides of the tunnel.Among them,water and mud inrush is a very common disaster in karst tunnels.Many tunnels suffer from it during construction.Through the study of Xingaopo tunnel on Xubi railway,an effective systematic measure for water inrush and mud gushing in karst tunnels is explored,and a more appropriate method for water inrush and mud gushing prediction and early warning technology during tunnel construction is studied.The research results show that the three-dimensional estimation and detection technology of Xingaopo karst tunnel and the software platform system of monitoring and intelligent early warning of water and mud inrush disaster in Xingaopo karst tunnel on Xubi railway have better guiding effect on the prediction and early warning of water and mud inrush in the rich water section of karst section.