8220孤岛工作面内错尾巷强化支护与现场应用  

Strengthening Support and Field Application of Cross-tail Roadway in the 8220 Isolated Island Working Face

作　　者：杜晓欢 Du Xiaohuan(Jinneng Holding Group Hongtai Co.,Ltd.,Shanxi Datong 037000)

机构地区：[1]晋能控股集团宏泰公司,山西大同037000

出　　处：《山东煤炭科技》2023年第1期52-54,共3页Shandong Coal Science and Technology

摘　　要：为解决塔山矿8220孤岛工作面内错尾巷围岩变形量大、变形速度快的问题,通过对支护现状和原因分析,提出采用混凝土支柱进行强化支护,顶底板移近量和两帮移近量分别较原支护方案减少65%和60%,巷道断面收缩率减少26%。In order to solve the problem of large deformation and fast deformation speed of the surrounding rock of the crosstail roadway in the 8220 isolated island working face of Tashan Mine, through the analysis of the support status and causes,it is proposed to use concrete pillar to strengthen the support, the roof and floor displacement and two side displacement are reduced by 65% and 60% respectively compared with the original support scheme, and the shrinkage rate of roadway section is reduced by 26%.

关 键 词：孤岛 尾巷 混凝土 支柱 

分 类 号：TD353[矿业工程—矿井建设]