综采工作面缩面回采方法的应用

Application of Shrinkage Face Mining Method in Fully Mechanized Coal Mining Face

21002综采工作面在掘进期间揭露落差达19 m的正断层,在回采过程中,该断层走向与工作面推进方向成54°夹角。为了减少该断层对工作面回采工作的影响,工作面设计采用缩面回采的方式过断层,机头段继续向外推进,减少缩面搬家的设备拆除和安装的工作量,通过缩面或搬家跳采方式躲过该断层影响区域。

21002 fully mechanized mining face exposes a normal fault with a fall of 19 m during tunneling.The strike of the fault is at an angle of 54 degrees with the advancing direction of the working face.In order to reduce the influence of the fault on the working face,the face design adopts shrinkage mining to pass through the fault,the nose section continues to push outward,reduces the workload of the equipment removal and installation of shrinkage moving,and avoids the influence area of the fault by shrinkage mining or moving jumping mining.