摘要
为解决惠阳煤业15#煤层开切眼松软破碎黄泥顶板支护困难的问题,通过测试顶板围岩物理力学性质,基于工程类比法确定锚杆+锚索+钢筋网联合支护方案,为保证安全高效,提出了切实可行的安全技术措施。结果表明:巷道的顶板下沉量较小,满足工程实际要求,有效地解决了破碎泥岩顶板开切眼支护难题。
In order to solve the difficulties in support of soft and broken open-cut roof of 15# coal seam of Huiyang Coal, by the physical and mechanical properties test for roof surrounding rock, the combined support program of bolt＋anchor cable＋steel mesh is determined based on the engineering analogy method, and the practical safe technical measures are put forward to ensure safety and efficiency. The results show that the smaller roadway roof subsidence meets the engineering requirements, and effectively solves the problem of open-cut support.
出处
《能源与节能》
2014年第10期131-132,192,共3页
Energy and Energy Conservation
关键词
松软破碎
开切眼
技术措施
支护
soft and broken
open-offeut
technical measures
support
