摘要
针对李村煤矿3301工作面底抽巷的布置进行了分析优化,旨在提升瓦斯抽采效率并确保巷道的稳定性。基于底板滑移线场理论和FLAC3D数值模拟技术,分析了底抽巷外错布置下的应力分布和围岩稳定性。结果表明,将底抽巷外错布置于两个工作面之间的煤柱下方,能够有效避开采动区域的应力集中,减小巷道塑性变形风险,且可以保证瓦斯抽采效果,为煤矿底抽巷的合理设计和优化提供了科学依据。
In this paper,the optimization of the arrangement of the bottom pumping lane in the working face of Licun Mine 3301 is studied,aiming at improving the gas extraction efficiency and ensuring the long-term stability of the roadway.Based on the theory of bottom slip line field and FLAC3D numerical simulation technology,the stress distribution and stability of the surrounding rock in different arrangement forms(external staggered arrangement,internal staggered arrangement,and directly underneath arrangement)were analyzed.The results show that the staggered arrangement of the bottom pumping tunnel below the coal pillar between two working faces can effectively avoid the stress concentration in the dynamic area,reduce the risk of plastic deformation of the roadway,and ensure the effect of gas extraction.The research results of this paper provide a scientific basis for the reasonable design and optimization of the bottom pumping tunnel in coal mines.
作者
张文伟
Zhang Wenwei(General Office of Licun Coal Mine,Shanxi Lu'an Mining Group Cilinshan Coal Industry Co.,Ltd.,Changzhi Shanxi 046000,China)
出处
《山西冶金》
2025年第7期119-121,共3页
Shanxi Metallurgy
关键词
底抽巷
布置优化
围岩稳定性
布置方式
bottom pumping lane
layout optimization
perimeter rock stability
layout method
