深部采区软岩巷道联合支护方案的设计与应用

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

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。

With increasing depth mining of Gaocheng Coal Mine, the underground pressure Increases accordingly, it can meet the re- quirements 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.