山东煤炭科技2024，Vol.42Issue(11)：25-29,5.DOI:10.3969/j.issn.1005-2801.2024.11.006
采动影响下小煤柱留巷围岩控制研究与实践
Research and Practice on the Control of Retaining Roadway Surrounding Rock in Small Coal Pillars Under the Influence of Mining
翟忍1
作者信息
- 1. 兖矿能源集团股份有限公司济宁三号煤矿,山东 济宁 272000
- 折叠
摘要
Abstract
Aiming at the problem of serious deformation of retaining roadway surrounding rock in small coal pillars under the influence of mining,a roadway protection technology of"construction coal pillar passing through anchor cable+coal pillar grouting reinforcement+wood crib filling reinforcement+roof and floor cutting"is proposed,and verified through on-site mine pressure observation.The research shows that the use of blasting pre splitting and roof cutting pressure relief and floor blasting pressure relief can effectively reduce the roof pressure and floor heave amount of the 23upper04 auxiliary along second section roadway.The application of coal pillar passing through anchor cable and coal pillar grouting combined to reinforce the 23upper04 auxiliary along second section roadway and small coal pillars can effectively improve the stability of the roadway roof side surrounding rock and the bearing capacity of the small coal pillars.Wood crib filling reinforcement further reduces the deformation amount of the roadway surrounding rock under mining influence,achieving relatively good application effects.关键词
小煤柱/留巷/围岩/控制Key words
small coal pillar/retaining roadway/surrounding rock/control分类
矿业与冶金引用本文复制引用
翟忍..采动影响下小煤柱留巷围岩控制研究与实践[J].山东煤炭科技,2024,42(11):25-29,5.
