关键词: 跨采, 双大巷, 底板应力, 巷道加固

Abstract: In view of the situation of crossmining roadway in Huaheng Mining Co.,Ltd.in the later period of mining,taking the west wing roadway and the west wing total return airway of 61103 outer working face as examples,the propagation law of the advance support pressure in the floor rock stratum is analyzed.Combining with the geological data of double roadways,the highstrength anchor cable (anchor bolt) beam and pressure net are put forward.Reinforcement scheme of combined support,Ushaped shed and steel shed support.According to the monitoring results of deformation of surrounding rock of roadway,roadway reinforcement increases the strength of roof support,makes the supporting points of roadway force act on the two sides,resulting in the displacement of the two sides of roadway,and the concentrated stress of surrounding rock of roadway propagates to the floor of roadway,resulting in floor heave phenomenon,and the roadway reinforcement support mode and support parameters are reasonable.

Key words: Cross mining, Double roadway, Floor stress, Roadway reinforcement