摘要
煤矿开采过程中煤柱的稳定性是回采巷道稳定的关键,煤柱尺寸留设是影响煤柱稳定的重要因素,但煤柱尺寸较大也会造成煤炭资源的浪费。为了确定合理的煤柱宽度,以石港矿9号煤层9110回风巷及辅助进风巷掘进工作面为研究对象,采用工程类比和数值模拟的方法,结合其地质及开采条件,对9110工作面双巷掘进煤柱的合理宽度进行研究分析,初步确定煤柱的合理宽度,为石港矿9号煤层及其他类似工作面煤柱宽度的确定提供技术经验。
The stability of coal pillar in the process of coal mining is the key to the stability of mining roadway.The size of coal pillar is an important factor affecting the stability of coal pillar,but the large size of coal pillar will also cause the waste of coal resources.In order to determine the reasonable width of coal pillar,taking the 9110 return air roadway and auxiliary air intake roadway driving face of No.9 coal seam in Shigang Mine as the research object,the reasonable width of coal pillar in double roadway driving of 9110 working face is studied and analyzed by engineering analogy and numerical simulation method,combined with its geological and mining conditions,and the reasonable width of coal pillar is preliminarily determined,which provides technical experience for the determination of coal pillar width in No.9 coal seam and other similar working faces in Shigang Mine.
作者
张勤
Zhang Qin(Shanxi Shigang Coal Industry Co.,Ltd.,Jinzhong 032600,China)
出处
《煤炭与化工》
CAS
2023年第3期34-38,共5页
Coal and Chemical Industry
关键词
煤柱留设
顺槽煤柱
煤柱宽度
coal pillar setting
crossheading coal pillar
coal pillar width
