复杂地质条件下综放矿压综合治理技术研究

Study on Comprehensive Control Technology of Rock Pressure in Fully Mechanized Caving Face under Complex Geological Conditions

东周窑煤矿主采煤层为5#煤层,为解决该矿工作面临空尾巷地质条件复杂、围岩稳定性差等问题,以8200工作面5200临空尾巷作为综合治理对象,经过提前主动支护巷道移近量仅为300mm(5200巷原来高度3.5m),有效地控制了巷道的稳定性,保证了回采的顺利进行。

The main coal seam of Dongzhouyao Coal Mine is 5#coal seam.In order to solve the problems of complex geological conditions and poor stability of surrounding rock in goaf tail roadway,5200 goaf tail roadway of 8200 working face is taken as the comprehensive control object,and the stability of roadway is effectively controlled by the advance active support of roadway approaching only 300mm(original height of 5200 roadway is 3.5m).Qualitative analysis ensures the smooth progress of mining.