该矿主要采煤方式是采用掩护式支架和滚筒采煤机配套的长壁开采方式(SD方式)。在通常情况下,为布置该工作面,需通过连续采机展开工作面及其两侧的采煤准备巷道。但是,随着煤层深度的增加,采掘时的超前压力和疏松地方的底鼓等,不断地干扰作业,因此,要备配许多人员维护巷道。 The main coal mining method is to adopt the longwall mining method (SD method) which is supported by the shield type supporter and drum shearer. Under normal circumstances, in order to arrange the face, it is necessary to continue mining to open the face and both sides of the coal preparation for roadway. However, as the depth of the coal seam increases, the lead pressure during excavation and the bottom drum in loose areas continue to interfere with operations. Therefore, many people are required to maintain the roadway.