深井高应力回采巷道底鼓协同控制技术研究及应用

Research and Application of Floor Heave Collaborative Control Technology in Deep Mine High Stress Coal-winning Roadway

随着煤矿深部开采的不断加深,巷道围岩所处的应力环境更加复杂,由此导致的巷道围岩变形破坏问题越来越严重,尤其是深井高应力回采巷道的底鼓问题已成为制约深部矿井安全生产的重要因素。针对某深埋煤层回采巷道底鼓问题,在分析该深埋煤层回采巷道底鼓成因和治理底鼓主要方法的基础上,提出了围岩加固和卸压槽卸压结合的协同控制技术。

With the increasing depth of coal mining, the stress environment of roadway surrounding rock is more complex, resulting in more and more serious deformation and destruction of roadway surrounding rock, especially the floor heave problem of deep high stress coal-winning roadway has become an important factor restricting the safe production of deep mine. Aiming at the problem of floor heave in a deep seam coal-winning roadway, based on the analysis of the causes of floor heave in the deep seam coal-winning roadway and the main methods of controlling floor heave, a collaborative control technology combining surrounding rock reinforcement and pressure relief trough is proposed.