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在全部采掘作业中,采准巷道的维护占有特殊的位置,因为煤矿生产的技术经济指标与巷道的状况有着很大的关系。 由于采掘作业的深度在不断地增长,顿巴斯各煤矿利用煤柱护巷的方法已不再适宜了,因为这种护巷方法导至损失大量的煤炭,增加所掘进巷道的长度,增加产生气体动力现象的危险性。 近年来获得推广应用的采准巷道无煤柱维护方法,由于手工作业劳动量大和许多材料(坑木,砌筑材料等)短缺而不能继续扩大使用。
In all the extractive operations, the acquisition and approval of roadway occupies a special position, because the technical and economic indicators of coal production and the status of the roadway has a great relationship. As the depth of mining operations continues to grow, the use of pillars in the various coal mines in Donbass is no longer adequate because the method of tunnel protection leads to the loss of large quantities of coal, increases the length of the roadway being burned and increases production Gas dynamic phenomenon of danger. In recent years, access to promote the use of non-coal pillars of maintenance methods, due to the manual labor and the large number of materials (pit, masonry, etc.) shortage and can not continue to expand the use of.