摘要
为增加开采效率,保证巷道服务年限,结合羊东矿巷道破坏的成因和现状,采用深浅孔联合注浆加固配合锚网喷索支护技术、配合中空锚索注浆施工工艺,并利用“双十字法”观测60 d内巷道表层围岩的收敛性变形情况,应用结果表明,巷道两侧最大位移为80~100mm,支护强度达到预期,提高了巷道整体稳定性,此次实验取得预期支护强度设想。
In order to increase the mining efficiency and ensure the service life of the roadway,combined with the causes and current situation of roadway damage in Yangdong Mine,the deep and shallow hole combined grouting reinforcement combined with anchor net spray cable support technology and hollow anchor cable grouting construction technology were adopted to improve the overall stability of the roadway.The results showed that the experiment has achieved the expected support strength.
作者
吕源
Lv Yuan(Yangdong Mine,Jizhong Energy Fengfeng Group Co.,Ltd.,Handan 056200,China)
出处
《煤炭与化工》
CAS
2023年第3期11-13,17,共4页
Coal and Chemical Industry
关键词
注浆理论
浅孔注浆
中空锚索注浆
grouting theory
shallow hole grouting
hollow anchor cable grouting
