金属十字铰接顶梁在回采巷道中的应用

Application of Metal Intersection Hinge Roof in Coal Winning Roadway

针对常村煤矿S_(1-5)上分层综采工作面是一“孤岛”采面,矿压显现明显、回采巷道断面收敛回缩以及巷道严重底鼓的状况,经科学比较,采用金属十字铰接顶梁配合单体柱在回采巷道中进行超前维护管理顶板,收到了显著效果。

Based on S1-5 up-seam of Changcun mining workface is isolated island face,behavior of rockstrate is clear, cross-section of roadway weaken and reduct and roadway floor heave, through comparing with science, metal intersection hinge roof cooperate hydraulic prop in driving roadway, lead safeguards and manages roof, it gains good result.