202012

近距离煤层群巷道支护研究应用
发布人:网站管理员 发布时间:2020/12/11 点击次数:210次
  

近距离煤层群巷道支护研究应用
何广宏
(山西汾西同达工程设计有限公司,山西 介休 032000)
摘要: 以汾西矿业香源煤矿1304 工作面的运输巷为工程背景,对在薄煤层、近距离煤层群条件下的巷道支护形式及
参数进行应用研究。1304 巷在上层煤的垂直和水平采动影响范围内,1304 巷道错位布置;1304 巷道支护分类别采用
“高强锚杆+W宽钢带+5.0 m短锚索”和“锚网+架棚”的两种支护体系。现场监测表明,1304巷道支护取得了预期效果。
关键词: 近距离煤层群;下煤层巷道;支护
中图分类号: TD353     文献标志码: A     文章编号: 2095-0802-(2020)12-0177-02
Research and Application of Roadway Support in Close-distance Coal Seam Group
HE Guanghong
(Shanxi Fenxi Tongda Engineering Design Co., Ltd., Jiexiu 032000, Shanxi, China)
Abstract: Based on the transportation roadway of 1304 working face in Xiangyuan coal mine of Fenxi Mining Industry Group as
the engineering background, this paper carried out application study on the roadway support forms and parameters under the
conditions of thin coal seam and close-distance coal seam group. The 1304 roadway is in the influence range of vertical and horizontal
mining of upper coal, and it is in a staggered arrangement. The support of 1304 roadway adopts two support systems of
"high strength anchor bolt + W wide steel belt + 5.0 m short anchor cable" and "anchor mesh + shed". Field monitoring shows
that 1304 roadway support has achieved the expected effect.

Key words: close-distance coal seam group; lower coal seam roadway; support