摘要
以阳煤三矿K8201工作面为研究对象,对软岩巷道的破坏机理和破坏特征进行分析。采用FLAC3D分别对软岩巷道无支护、锚网索支护和二次注浆加固进行数值模拟,通过位移和塑性区区域分布图得知,软岩巷道的最佳支护形式是采用锚网索+二次注浆的联合支护,并分析了软岩巷道的支护参数。采用离层监测仪对支护效果进行监测,结果表明联合支护取得了良好的效果。
By analysis of the failure mechanism and characteristics of soft-rock roadway,the author proposes the numerical simulation of non-support,anchor cable support,secondary grouting reinforcement through FLAC3D,which concludes the best supporting form in soft-rock roadway is combined support with anchor cable and secondary grouting according to the displacement and regional distribution of plastic zone.
作者
贾致斌
Jia Zhibin(Production Management Dept.,No.3 Colliery,Yangquan Coal Industry Group Co.,Ltd.,Taiyuan,Shanxi 045000)
出处
《江西煤炭科技》
2019年第1期42-44,48,共4页
Jiangxi Coal Science & Technology
关键词
软岩
破坏机理
锚网索
二次注浆
soft rock
failure mechanism
anchor cable
secondary grouting
作者简介
贾致斌(1984-),男,2006年毕业于阳泉职业技术学院,专科学历,矿建助理工程师,从事煤巷掘进工艺。
