摘要
针对煤矿井下大断面切眼支护所存在的支护跨距大、稳定性不足、支撑效率低的难题,提出了一种新的“锚杆+锚网+锚索”综合支护方案,支护效率提升14.2%,支护成本降低17.4%,提升了大断面切眼的稳固性。
Aiming at the problems of large support span,insufficient stability and low support efficiency of large section cut in coal mine,a new comprehensive support scheme of"bolt+anchor net+anchor cable"is proposed.The support efficiency is increased by 14.2%,the support cost is reduced by 17.4%,and the stability of large section cut is improved.
作者
许艳伟
Xu Yanwei(Shanxi Gaohe Energy Co.,Ltd.,Shanxi Changzhi 047100)
出处
《山东煤炭科技》
2021年第4期82-83,87,共3页
Shandong Coal Science and Technology
关键词
大断面
切眼
支护
large section
cut
support
