深部采区软岩巷道联合支护方案的设计与应用

随着告成煤矿开采深度的不断增加,矿压也随之增大,软岩巷道单一的锚网喷支护或U型钢+喷浆的支护强度已经不能满足矿井的支护要求。为了有效防止25内、外环水仓以及泵房变电所掘进后出现变形、反复扩修的现象,经过反复的现场分析和理论验证,制定了深部采区软岩巷道支护方案,即U型钢支架与锚注联合支护方案。

Design and Application of Deep Mining Area Soft Rock Roadway Combination Support Program

With increasing depth mining of Gaocheng Coal Mine,the underground pressure Increases accordingly,it can't meet the requirements of mining support by a single network anchor in soft rock roadway shotcrete support or U-shaped steel + support strength of shotcrete.In order to effectively prevent deformed and repeated expanding and maintenance phenomenon of within and outer of 25 drain and a pump station substation after excavation,after repeated scene analysis and theory validation,developed supporting program of soft rock roadway in deep mining area,it means that U steel supports and anchors note combined support program.