摘要
本文以黑龙江某矿2301工作面2#煤层为研究背景,利用FLAC^(3D)数值模拟软件,对不同宽度煤柱的情况进行模拟研究,以探究煤柱内应力和位移分布规律,以及煤柱宽度与巷道围岩稳定性之间的关系,随着工作面开采巷道围岩先后经历了五个阶段,得出了合理护巷煤柱宽度为15m,并减少煤炭损失和提高了采出率。
This article takes the 2#coal seam of the 2301 working face in a certain mine in Heilongjiang Province as the research background,and uses FLAC^(3D) numerical simulation software to simulate the situation of coal pillars with different widths,in order to explore the distribution law of stress and displacement inside the coal pillars,as well as the relationship between the width of the coal pillars and the stability of the surrounding rock of the roadway.With the mining of the surrounding rock of the roadway in the working face going through five stages,a reasonable width of 15m for protecting the roadway coal pillars is obtained,which reduces coal loss and improves the extraction rate.
作者
李俊辉
LI Jun-hui(School of Mining Engineering,Heilongjiang University of Science and Technology,Harbin 150020,China)
出处
《价值工程》
2024年第15期123-125,共3页
Value Engineering
