大断面切眼两次掘进成巷支护探究
张兵
（大同煤矿集团有限责任公司，山西大同037003）
摘要： 以大断面切眼2 次掘进成巷支护为对象开展探究，结合具体工程实际，在分析大断面切眼施工不利条件的基
础上，对大断面切眼2 次掘进成巷支护方案开展探究，并对其实际应用效果做出监测分析。结果表明，2 次掘进支护方
案应用效果良好，实现了对围岩变形的有效控制，为生产安全开展提供了坚实保障。
关键词： 煤矿；大断面切眼；成巷支护；锚杆索网支护
中图分类号： TD353 文献标识码： A 文章编号： 2095-0802-(2019)09-0072-02
Study on the Roadway Support of Twice Excavation for Large Section Open-off Cut
ZHANG Bing
(Datong Coal Mine Group Co., Ltd., Datong 037003, Shanxi, China)
Abstract: The roadway support of twice excavation for large section open-off cut was explored. Based on the analysis of the
disadvantageous conditions of large section cut-in construction, this paper explored the roadway support scheme of large section
open -off cut twice excavation, and made monitoring analysis of its practical application effect. The results show that the
application effect of the twice excavation support scheme is good, and the effective control of surrounding rock deformation is
achieved, which provides a solid guarantee for the safe development of production.

 Key words: coal mine; large section open-off cut; roadway support; bolt-cable-net support