窄煤柱沿空掘巷锚网支护参数研究与应用  

Research and Application of Bolt Mesh Support Parameter of Driving Roadway along Goaf with Narrow Coal Pillar

作　　者：刘安保 

机构地区：[1]西山煤电(集团)有限责任公司杜儿坪煤矿,太原030022

出　　处：《煤炭技术》2015年第5期57-59,共3页Coal Technology

基　　金：煤炭资源与安全开采国家重点实验室自主研究课题基金资助项目(SKLCRSM08X01)

摘　　要：以杜儿坪矿72908工作面为顺序接替工作面,采用留窄小煤柱沿空掘巷,巷道采用高强锚网支护技术。通过正交试验设计锚杆不同间排距和不同长度模型,研究巷道浅部围岩体的预应力场分布,确定出最佳技术经济效益的锚杆参数。现场工业试验表明,巷道支护效果良好,达到了预期的效果。72908 working face of Duerping coal mine is supersede working face,the roadway,adopting high strength anchored network supporting technology,is supported by the driving roadway along goaf with narrow coal pillar.In order to work out the anchor parameters resulting in the maximum technological and economic benefit the orthogonal test is designed by different row,line space and length of bolts,and the distribution of prestress field in roadway surrounding rock is analyzed.It is manifest in the industrial experiment that the roadway support have the fine effect and achieves the expected result.

关 键 词：沿空掘巷 锚杆 参数优化 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]