With the increasing depth of coal mining,underground roadways will be a higher environment of geo-stress,especially in the areas where there have happened intense activities of geological structure.

• 随着煤矿开采深度的不断增加,井下煤矿巷道将处于更高的地应力环境中,尤其在地质构造活动强烈的地区,井下巷道支护及稳定性更加难以保证。