Research and Application of Active Support and Pressure Relief Protection in Deep Mines

In recent years, with the extension of coal mine at depth, rock bursts are more and frequent. Therefore, research roadway support pressure relief has become key to prevent burst. this paper, primary high strength hydraulic fracturing measures studied analysed. The emphasizes matching characteristics materials, strengthen protection active roadway, realize an integrated system. Considering strong burst-prone area, is used achieve surrounding mass, which can release transfer energy within range relief. When there outside system, region absorb so as purpose protecting roadway. A field engineering case applicated, results shown that stress micro seismic significantly decreases, reducing possibility bursts.