Surrounding Rock Control Technology of Roadway in High Horizontal Stress Influenced by Overhead Mining

In order to improve the stability of roadway influenced by horizontal stress and overhead mining, deformation and failure characteristics of the roadway with different support patterns were firstly studied by similar simulation test in the condition of different horizontal loads. Then when the working face was at different distances from the central line of the roadway, the changing laws of surrounding rock displacement of roadway with different support patterns which were influenced by overhead mining were analyzed with simulation software FLAC^3D. The result indicates that bolting and shotcreting with mesh + grouting support can greatly reduce roof convergence and raise self-supporting properties of surrounding rocks.