摘要
针对三盘区2310巷3-5#合并煤层期间,位于进向左侧巷帮煤柱片帮严重、支护难度大、支护效率差且顶板失稳现象严重等难题,提出了"超前注浆加固+超前锚索+水力管棚锚杆"联合支护技术,片帮深度由1.6 m降低为0.3 m,片帮长度由最大2.4 m降低为0.5 m,取得了显著应用成效。
In view of the difficult problems such as serious coal pillar slope, difficult support, poor support efficiency and serious roof instability during the period of the 3-5# seam combination of the 2310 roadway in 3 panel area, the combined support technology of "advanced grouting reinforcement + advanced anchor cable + hydraulic pipe shed bolt" is put forward. The slope depth is reduced from 1.6 m to 0.3 m and the maximum length is reduced from 2.4 m to 0.5 m.Remarkable application results have been achieved.
作者
高雄
Gao Xiong(Jinneng Holding Coal Industry Group Yanya Coal Datong Co.,Ltd.,Shanxi Datong 037031)
出处
《山东煤炭科技》
2021年第10期58-59,63,共3页
Shandong Coal Science and Technology
关键词
掘进
煤巷
片帮
技术
driving
coal roadway
wall caving
technology
