采空区胶结充填的矿房采矿法越来越得到广泛应用。这种采矿法最主要的缺点是采矿费用急剧上升,开采强度比较低,以及巷道掘进工程量较大。这些缺点是由这种采矿法的结构特点所造成的。阻碍改善此法技术经济指标(尤其是掘进速度和掘进工劳动生产率)的因素之一,是巷道掘进过程的繁重劳动。改变采矿法的 The mined-out mining method of mined-out mined-out area is getting more and more widely used. The main disadvantages of this mining law are the sharp increase in mining costs, the relatively low extraction intensity and the large amount of tunneling works. These shortcomings result from the structural features of this mining law. One of the factors hindering the improvement of the technical and economic indicators of this law, especially the speed of excavation and the productivity of excavators, is the heavy labor in the tunneling process. Change the mining law