摘要
以金庄煤矿特厚煤层综放工作面为工程背景,结合理论分析、数值模拟和现场实测的方法确定工作面区段煤柱的合理宽度。现场实测表明,应力峰值工作面超前16 m出现影响范围50 m。研究结果为相似条件下工作面合理区段煤柱宽度的留设提供了借鉴。
Taking the extra-thick coal caving face of Jinzhuang coal mine as the engineering background, the reasonbable width of segment pillar of workface is determined by the means of theoretical analysis, numerical simulation and field measurement. The results can provide a referance for segment pillar setting of workface in other mines of similar conditions.
出处
《煤炭技术》
CAS
北大核心
2015年第11期40-43,共4页
Coal Technology
基金
江苏省大学生创新创业训练计划项目(201510290014Y)
关键词
特厚煤层
区段煤柱留设
煤柱应力
数值模拟
extra-thick coal seam
segment pillar setting
stress of coal pillar
numerical simulation
