摘要
侏罗纪厚煤层大断面切巷一次成巷,断面面积30.8m2,掘进机掘进成巷,支护理论采取悬吊理论计算,选择合理支护方法。经验证,施工方法起到了明显的效果,巷道成形明显变好,有效维护了切巷顶板。
Using the method for tunneling machine, once excavating the whole large section cut of the Jurassic thick coal seam, section area is 30.8m^2, taking suspension theory calculation, and selecting of reasonable support method. After verification, the construction method has played a significant effect; the roadway forming significantly changed for the better, and effectively maintained the cutting roadway roof.
出处
《山东煤炭科技》
2015年第4期28-30,共3页
Shandong Coal Science and Technology
关键词
大断面
切巷
一次成巷
顶板支护
heavy section
cut lane
once tunneling
roof support
