煤炭与化工2025，Vol.48Issue(1)：26-29,34,5.DOI:10.19286/j.cnki.cci.2025.01.005
沿空掘巷煤柱合理宽度确定与围岩稳定性研究
Determination of reasonable width of coal pillar and analysis of surrounding rock stability in roadway along gob
刘全福 1孔凡勇1
作者信息
- 1. 山东义能煤矿有限公司,山东济宁 272500
- 折叠
摘要
Abstract
Based on the engineering background of gob-side entry driving in No.1308 Face of Yineng Mine,the Trigon model was established based on the field geological conditions by using UDEC numerical simulation method,and the model was corrected.The roadway deformation,coal pillar cracks and stress distribution characteristics were studied when the coal pillar width was 4,6,8 and 12 m.The numerical simulation results showed that under the width of 6 m coal pillar,the deformation of roadway surrounding rock and the distribution of internal cracks were relatively reasonable,and the stress distribution was more balanced in key parts.After carrying out industrial experiments,the monitoring results showed that the overall control effect of the roadway was good.The research results could provide a useful reference for the stability of roadways under different coal pillar widths in gob-side entry driving.关键词
煤柱/围岩稳定/裂隙/Trigon模型Key words
coal pillar/stability of surrounding rock/cracks/trigon model分类
矿业与冶金引用本文复制引用
刘全福,孔凡勇..沿空掘巷煤柱合理宽度确定与围岩稳定性研究[J].煤炭与化工,2025,48(1):26-29,34,5.
