煤矿安全2019，Vol.50Issue(6)：86-90,5.DOI:10.13347/j.cnki.mkaq.2019.06.021
邢东矿深部巷道围岩支护技术
Surrounding Rock Supporting Technology in Deep Roadway of Xingdong Coal Mine
摘要
Abstract
To solve the surrounding rock support problem of -980 m deep roadway in Xingdong Mine, the surrounding rock structure, displacement of roof and floor and two sides are observed by means of borehole peep meter and surface displacement observation method. It can be seen that the roadway surrounding rock is broken, the surface deformation is large, and the floor deformation is particularly serious. Results show that the high stress roadway surrounding rock and supporting structure are not reasonable to cause destruction of roadway surrounding rock deformation; through mechanical calculation and analysis, it is concluded that the ring support has a strong bearing capacity; the supporting technology of integral support with ring support and grouting of anchor cable with bottom plate is proposed, and the combined supporting technology of bolt and shotcrete is combined to form the composite supporting technology. The results of industrial test show that it can effectively control the continuous deformation of roadway surrounding rock.关键词
巷道围岩/围岩变形/巷道支护/力学计算/钻孔窥视Key words
roadway surrounding rock/deformation of surrounding rock/roadway support/mechanical calculation/borehole peep分类
矿业与冶金引用本文复制引用
LIU Weifeng,ZHUANG Xin,HUANG Chenglin..邢东矿深部巷道围岩支护技术[J].煤矿安全,2019,50(6):86-90,5.基金项目
山西省高等学校重点教改资助项目(JG2013081) （JG2013081）
