中国矿山工程

Through FLAC^3D simulation of 8102-3 working face before and after passing through 5102 empty roadway, the stress, displacement and plastic zone distribution of the roadway are analyzed by using crib, bolt and filling support respectively. The surrounding rock stability of empty roadway is good and the supporting effect is the best with filling support. High-water materials are used to construct along the 5102 empty roadway from west to east in turn, with a spacing of 30~50m. After the filling support is completed, it can be seen from monitoring the hydraulic support resistance in 8102-3 working face that the filling support in the empty roadway can ensure the safe mining of the working face.