戚家坡煤矿生产能力1.4Mt/a,采用斜井单水平上下山开拓方式,开采深度300～500m。井下大部分开拓巷道布置在侏罗纪高应力软岩中,采用锚网(索)、喷浆支护,从支护效果上来看,对顶、帮控制总体上比较好,但部分巷道由于底板水及其它复杂因素影响,在底板底鼓控制上效果还不理想,巷道出现不同程度的底鼓。 Qi Jiapo coal mine production capacity of 1.4Mt / a, the use of a single horizontal shaft incline to open up the way, mining depth 300 ~ 500m. Most of the underground excavation roadways are arranged in high-stress soft rock of Jurassic. Using anchor net (cable) and shotcrete support, from the supporting effect point of view, the control of top and bottom is generally better. However, part of the roadway due to the floor water and Other complex factors, the bottom of the drum control effect is not satisfactory, the tunnel appeared to varying degrees kick drum.