Filed test of comprehensive treatment method for high pressure dynamic grouting
Combining with hydro-geological conditions of No.2 auxiliary haulage roadway of Longgu Coal Mine,principle of security control for underground water disaster was put forward.Geological analysis,comprehensive detection,field tests and real-time monitoring were integrated together.Stratum structure and water source can be judged by geological analysis,aquifer and channel for water are detected by physical technologies,the connectivity conditions of water and grouting materials can be determined by field tests.Based on the above four points,the comprehensive treatment method for high pressure water inflow was found.The method was applied successfully in water plugging in the No.2 auxiliary haulage roadway of Longgu Coal Mine which ensure the security operations and help to save cost significantly for pumping water.It shows that this method has wide application prospect.