Research on Early Warning and Risk Source Control Technology of Tunnel Water Inrush in Water-rich Area
In order to reduce the disaster of water inrush and mud inrush during the construction of highway tunnels in water rich areas,this paper,relying on the Gudoushan Tunnel Project,proposes a variety of advanced geological prediction methods and risk source control technologies for water and mud inrush tunnel sections.A tunnel advanced geological prediction method with hierarchical management is proposed,and geological survey,TSP,geological radar and advanced geological drilling methods are selected according to the surrounding rock grade for comprehensive prediction.The large pipe shed,small conduit and curtain grouting advanced support method are adopted to control the risk of water and mud inrush in Gudoushan Tunnel,effectively avoiding the phenomenon of water and mud inrush in water rich areas.
water rich areatunnelwater inrushmud inrushcontrol technology