摘要
针对古城煤矿N1305沿空留巷顺槽存在两帮移近和底鼓量大的问题,对巷道围岩松动圈进行测定,提出了“锚网索+帮部注浆锚索+注浆加固”的巷道新修复方案。N1305沿空留巷顺槽1400~1480 m段试验表明:巷道顶、底板和两帮最大位移量较小,均在合理范围内,新修复方案合理可行。
Aiming at the problems of two sides moving close and large floor heave in the gateway of N1305 goaf retaining roadway in Gucheng Coal Mine,the loose zone of the roadway surrounding rock is measured,and a new roadway repair scheme of"anchor net cable+sides parts grouting anchor cable+grouting reinforcement"is put forward.The test of the N1305 gob-side roadway channel from 1400-1480 m shows that the maximum displacement of roadway roof,floor and two sides is relatively small,all within a reasonable range,and the new repair scheme is reasonable and feasible.
作者
张梁亮
Zhang Liangliang(Lu'an Chemical Group,Gucheng Coal Mine,Shanxi Changzhi 046100)
出处
《山东煤炭科技》
2023年第2期34-36,共3页
Shandong Coal Science and Technology
关键词
软岩
巷道
修复
支护
soft rock
roadway
repair
support
