倾斜特厚煤层综放开采回采巷道围岩应力分析

Stress Analysis of the Surrounding-rocks of Gateways with Fully-mechanized Caving Mining Gateways in Inclined Super-thick Coal Seam

通过对倾斜特厚煤层陈家沟煤矿1205工作面回采过程中回风顺槽和运输顺槽支架载荷的实测研究,揭示了在实际回采过程中巷道围岩的应力显现特征,得出了回风顺槽的压力要大于运输顺槽压力、回风顺槽巷道两帮压力大于顶板压力、运输顺槽工作面侧压力大于采空区侧压力等结论,为下一工作面的安全生产提供了依据,同时也为相同条件下的矿井巷道支护提供了参考。

Through the experimental research on the support loads of return air gate-road and transport gate-road in stoping process of 1205 working face in Chenjiagou Coal Mine＇s inclined super-thick coal seam, This paper reveals the features of the stress of surrounding rocks in gate-road in actual stoping process, and draws the conclusions that the pressure of return air gate-road is greater than the pressure of transport gate-road, the pressure on both sides of return air gate-road is greater than the roof pressure, and the side pressure of the working face of transport gate-road is greater than the side pressure of worked-out section, providing the basis for the next working face＇ s safe production and also providing references for mine roadway support under the same constraints.