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综采改造工作面开切眼巷道是安装综采设备,进行开采前准备的巷道。由于液压支架架长5.3m,从而要求其断面必须是跨度较的掘进巷道。在综采改造工作面(综采跳采工作面)中,受地质条件、支护材料及巷道断面的影响,如果在短时间内掘进出改造切眼巷道,则巷道顶板压力不太明显,能保证工作面综采设备安装时对巷道高度及宽度的要求。以淮北矿业集团海孜煤矿422综采工作面做改造切眼为例,阐述综采改造工作面切眼快速刷大掘进与安全管理方法。
Fully mechanized mining face to open cut roadway is the installation of fully mechanized mining equipment, mining prepared for the roadway. As the hydraulic support frame length 5.3m, requiring the cross-section of the tunnel must be more than the roadway. In the fully mechanized mining face (fully mechanized mining and jumping mining face), affected by the geological conditions, supporting materials and roadway section, if the tunnel roadway is excavated in a short time, the roof pressure is not obvious, Ensure the working face fully mechanized mining equipment installation height and width of the roadway requirements. Taking the cut of 422 fully mechanized mining face in Haizi Coal Mine of Huaibei Mining Group as an example, this paper elaborates the method of quick cutting and big digging and safety management of fully mechanized mining face.