Support Technology of Soft Coal Dynamic Pressurized Roadway in Closed Distance Seam Group

Based on the problem of overall instability of soft coal dynamic pressurized roadway in closed distance seam group of an coal mine, the deformation and failure mechanism of soft coal dynamic pressurized roadway in closed distance seam group was analyzed through the method of combining field measurement numerical simulation and theoretical analysis, then the supporting measures of soft coal dynamic pressurized roadway in closed distance seam group was put forward, which is combined support of higher pretension bolting wire mesh and single prop temporary reinforced timbering, and the parameter and process of combined support is also determined.