煤矿根据采区工作面的具体状况,从实际出发选择了回采工艺的截割方式和合理截深。分析了在采煤过程中割不到顶和留夹石开采等问题,提出了改进的具体措施。 According to the actual conditions of the mining face, the coal mine selects the cutting method and a reasonable cut-off of the mining process. The problems such as cutting the top and retaining stone in the process of coal mining were analyzed, and some specific measures for improvement were put forward.