摘要
口孜东矿北翼轨道石门尾段埋深大,压力大,掘进后采用"锚架注"支护,变形破坏严重;采用同样的支护形式修复后,仍然变形破坏。为此,对"锚网索喷"+钢管混凝土支架支护进行了研究和应用,取得了成功。巷道支护后,无明显变形,有效地控制了巷道变形破坏,技术经济效益明显。
An end section of a north wing railway cross—cut in East Kouzi Mine was high in depth and pressure. After a heading operation,a “bolt—liner—grouting” support was applied and the deformation failure was serious.With a same support mode applied to the roadway repair,the deformation failure was occurred again. Therefore a study and application on the support of the“bolt—steel mesh—anchor— shotcrete” ＋ steel pipe concrete liner was conducted and a successful application was obtained. After the application,there was no obvious deformation occurred,the deformation failure of the mine road way was effectively controlled and the technical and economic benefit was obvious.
出处
《建井技术》
2014年第5期26-29,共4页
Mine Construction Technology
关键词
巷道修复
变形破坏
锚网索喷
钢管混凝土支架
mine roadway repair
deformation failure
bolt-steel mesh-anchor-shotcrete
steel pipe con_crete liner
