煤矿安全2017，Vol.48Issue(8)：223-226,4.DOI:10.13347/j.cnki.mkaq.2017.08.061
迎采掘进巷道合理煤柱宽度确定
Determining Reasonable Pillar Width of Roadway Driven Heading for Adjacent Advancing Coal Face
摘要
Abstract
Aiming at the problem of roadway layout of the roadway heading for adjacent advancing coal face in Dongyi Mine,combined the methods of numerical modeling calculation and theoretical analysis,we study the lateral support stress distribution,roof deflection distribution of different places around 4101 working face and plastic zone distribution in different width of coal pillar.It shows that the distribution shape of lateral support stress and deflection value is like "hump shape",and there is the elastic stability zone in the coal pillar when the roadway is arranged at the inside of the peak of deflection,which ensures strong carrying capacity of the coal pillar.Combined actual production conditions in Dongyi Mine,and finally it is determined that the narrow pillar width is seven meters.关键词
迎采掘巷/窄煤柱/数值模拟/理论计算/顶板挠度/煤柱宽度Key words
roadway driven heading for adjacent advancing coal face/narrow pillar/numerical simulation/theoretical calculation/roof deflection/pillar width分类
矿业与冶金引用本文复制引用
康继忠,孙毅,杨建雄,神文龙,赵强..迎采掘进巷道合理煤柱宽度确定[J].煤矿安全,2017,48(8):223-226,4.基金项目
江苏省普通高校研究生科研创新计划资助项目(KYLX16_0559) （KYLX16_0559）
