复杂地质条件下综采工作面大断面切眼施工及支护
刘红波
（山西焦煤霍州煤电木瓜煤矿，山西 方山 033100）
摘要： 为解决复杂地质条件下综采工作面大断面切眼围岩变形量大、支护困难的问题， 以木瓜煤矿10201 综采工作
面切眼为研究对象， 提出采用“二次成巷” 施工工艺和“锚网索+注浆+单体支柱” 的联合支护措施。现场应用效果表
明： 切眼过断层破碎带期间， 顶底板相对移近量最大值为138.72 mm， 两帮相对移近量最大值为81.62 mm， 无冒顶及片
帮现象发生， 切眼成形效果较好。
关键词： 综采工作面； 大断面切眼； 导硐扩刷； 围岩控制
中图分类号： TD353      文献标志码： A      文章编号： 2095-0802-(2023)11-0123-03
Large-section Cut Construction and Support of Fully-mechanized Mining Face
under Complex Geological Conditions
LIU Hongbo
(Mugua Coal Mine, Huozhou Coal Electricity Group, Shanxi Coking Coal Group, Fangshan 033100, Shanxi, China)
Abstract: In order to solve the problem of large deformation of surrounding rock and difficult support in the large-section cut of
the fully-mechanized mining face under complex geological conditions, taking the cut of 10201 fully-mechanized mining face of
Mugua Coal Mine as the research object, the combined support measures of "secondary tunneling" construction technology and
"anchor net cable + grouting + single pillar" was proposed. The field application results showed that the maximum relative
displacement of the roof and floor was 138.72 mm, and the maximum relative displacement of the two sides was 81.62 mm during
the period when the cut passed through the fault fracture zone, there was no roof fall and wall caving, and the cut shaping effect
was good.
Key words: fully-mechanized mining face; large-section cut; expanding brush of guide hole; surrounding rock control