202204

东河煤矿工作面无煤柱自成巷设计
发布人:网站管理员 发布时间:2022/4/22 点击次数:42次
  

东河煤矿工作面无煤柱自成巷设计
王云龙
(太原煤炭气化(集团)有限责任公司东河煤矿,山西 蒲县 041207)
摘要: 切顶卸压沿空留巷已经成为无煤柱开采的重要方法之一。结合东河煤矿2206 工作面的实际情况,分析了切顶
卸压自成巷的施工工艺、顶板恒阻大变形锚索补强加固支护设计与施工以及顶板预裂切缝设计与施工,并探讨了自成巷
的临时支护工艺,以期为煤矿切顶卸压施工提供一定的参考。
关键词: 无煤柱开采;切顶卸压;自成巷;施工工艺
中图分类号: TD353     文献标识码: A     文章编号: 2095-0802-(2022)04-0122-03
Design of Automatic Roadway Formation without Coal Pillar in Working Face of Donghe
Coal Mine
WANG Yunlong
(Donghe Coal Mine, Taiyuan Coal Gasification (Group) Co., Ltd., Puxian 041207, Shanxi, China)
Abstract: Roof cutting and pressure relief and gob-side entry retaining have become one of the important methods of non-pillar
mining. Combined with the actual situation of 2206 working face in Donghe Coal Mine, this paper analyzed the construction
technology of roof cutting and pressure relief automatic roadway formation, the design and construction of roof constant resistance
and large deformation anchor cable reinforcement support, as well as the design and construction of roof pre-crack and seam
cutting, and discussed the temporary support technology of automatic roadway formation, in order to provide some reference for the
construction of roof cutting and pressure relief in the coal mine.

Key words: non-pillar mining; roof cutting and pressure relief; automatic roadway formation; construction technology