蹬空、孤岛工作面巷道变形规律及其控制技术实践

The deformation law of the roadway in the empty and isolated island working face and its control technology

淮南矿业集团张集煤矿1213(1)综采工作面为蹬空、双沿空回采工作面,北以采区边界断层F217为界,南为西一采区系统巷道,东、西分别为1212(1)、1214(1)采空区;上覆13-1煤层1214(3)、1213(3)、1215(3),下伏8煤17278、6煤17266均已回采完。轨顺受采动影响区为:61m^367m,共计306m;运顺受采动影响区为53m^359m,共计306m。回采至塌陷影响区期间两巷变形量增大,给工作面通风、行人、转载机拉移造成困难。在采取刷帮、底板掏槽、帮部锚索加固等措施后,有效控制巷道变形量,为此类条件下开采提供借鉴。

Huainan mining group sheet sets coal mine 1213（1） for the fully mechanized coal face push and double working face along the empty,empty F217 mining boundary fault is the borderline for north,south to west mining system of roadway,east and west,respectively,1212（1）,1214（1） the mined-out area;Overlying coal seam 13-1,1214（3）,1213（3）,1215（3）,underlying coal 8,6,17278,17266 have been recovery.Rail affected by mining district is： 61 m- 367- m,a total of 306 m; Shun affected by mining area for 53 m- 359- m,a total of 306 m. Mining influence area to collapse during two lane deformation increase,to face ventilation,pedestrians,reprint machine make it difficult. Taking brush help department,plate cutting,anchor cable reinforcement measures,effectively control the deformation of roadway,the mining to provide reference for such conditions.