深井高应力软弱围岩巷道支护技术实践  

Practice on Support Technology of Roadway with High Stress and Weak Surrounding Rock in Deep Shaft

作　　者：惠金卫 XI Jinwei(Hetaoyu Coal Mine,Hua’neng Qingyang Coal Electricity Co.,Ltd.,Qingyang 745000,China)

机构地区：[1]华能庆阳煤电公司核桃峪煤矿,甘肃庆阳745000

出　　处：《建井技术》2018年第6期10-13,21,共5页Mine Construction Technology

摘　　要：核桃峪煤矿1802反风联络巷位于8号煤层中,埋深约976 m,顶底板以泥岩、砂质泥岩等软弱岩层为主,巷道变形严重,断面不能满足通风要求。在充分研究巷道围岩地质条件、应力环境和原支护结构的基础上,采用"锚杆+钢丝绳网+喷射混凝土+泄压"的缓释叠加应力支护技术,对巷道进行修复,取得成功,巷道变形得到了有效控制,修复效果良好。该项支护技术对我国西部侏罗系深部软岩巷道变形具有较好的控制作用。The 1802 air revering crossheading of Hetaoyu Coal Mine is located in No.8 coal seam with a depth of about 976 m.Its roof and floor are mainly weak rock strata such as mudstone and sandy mudstone.The roadway was severely deformed and the section could not meet the ventilation requirements.On the basis of fully studying the surrounding rock geological conditions,stress environment and original supporting structure of the roadway,the slow release superimposed stress support technology of “bolt+steel wire mesh+shotcrete+pressure relief” was used to repair the roadway,and it achieved success.The deformation of the roadway was effectively controlled,and the repair effect was very good.This support technology has a good control effect on the deformation of the deep roadway with weak surrounding rock of the Jurassic in Western China.

关 键 词：深井 高应力 软弱围岩巷道 动态支护 缓释叠加应力 

分 类 号：TD266[矿业工程—矿井建设]