金达矿综放工作面区段窄煤柱宽度留设分析  

Analysis of Section Narrow Coal Pillar Reserve-width in Fully Mechanized Caving Face of Jinda Colliery

作　　者：张建 Zhang Jian(Jinda Coal Industry Co.,Ltd.,Shanxi Coking Coal Huajin Coking Coal Group,Xiaoyi,Shanxi 032300)

机构地区：[1]山西焦煤华晋焦煤金达煤业有限公司,山西孝义032300

出　　处：《江西煤炭科技》2024年第2期85-87,共3页Jiangxi Coal Science & Technology

摘　　要：为确定区段煤柱合理留设宽度,以金达矿10402综放面回风巷采空区侧的煤柱为研究背景,采用理论分析、数值模拟、工程实践等方法对窄煤柱合理留设宽度进行了探讨;通过理论计算确定区段煤柱尺寸不低于7.41m,结合数值模拟分析,最终确定区段煤柱合理宽度为10m;工程实践表明,区段煤柱留设10m时,该沿空巷道变形量较小,围岩保持了整体稳定,可以满足实际生产的要求。In order to determine the reasonable reserve-width of the section coal pillar,taking the coal pillar on the goaf side of the ventilation roadway in 10402 fully mechanized caving face of Jinda Colliery as the research background,the author uses theoretical analysis,numerical simulation and engineering practice,etc.to explore the reasonable reserve-width of the narrow coal pillar and determines that the size of the section coal pillar is no less than 7.4l m,and the reasonable width of the section coal pillar is 10 m,whose engineering practice shows that when the reserve-width of the section coal pillar is 10 m,the deformation of the gob-side entry is relatively small,and the surrounding rock maintains overall stability,which can meet the requirements of actual production.

关 键 词：综放工作面 区段窄煤煤柱 合理宽度 

分 类 号：TD822.3[矿业工程—煤矿开采]