深部回采巷道变形破坏原因及返修支护控制研究  

Study on the causes of deformation and damage of deep recovery roadway and repair support control

作　　者：闫玉峰 Yan Yufeng(Jiulong Mine,Jizhong Energy Fengfeng Group,Handan 056200,China)

机构地区：[1]冀中能源峰峰集团九龙矿,河北邯郸056200

出　　处：《煤炭与化工》2020年第12期6-8,共3页Coal and Chemical Industry

摘　　要：将新三矿3201工作面运输顺槽出现的变形破坏问题作为研究对象,分析认为导致运输顺槽出现较大变形破坏的主要因素是巷道所处地段地质条件复杂、原支护设计不合理、围岩自承能力未充分发挥等。结合运输顺槽所处实际地质条件,设计“锚网索+U钢+柔性层”复合支护方案,对运输顺槽进行返修。结果表明,该方案取得了较好的返修支护效果。In this paper,the deformation and damage of the transportation roadway in the 3201 working face of Xinsan Mine was studied,and it was analyzed that the main factors leading to the deformation and damage of the transportation roadway were the complex geological conditions of the roadway,the unreasonable design of the original support,and the under-utilized self-supporting ability of the surrounding rocks.In combination with the actual geological conditions,the"anchor cable+U steel+flexible layer"composite support scheme was designed to repair the transportation roadway,and the results showed that the scheme achieved a good repair support effect.

关 键 词：深部回采巷道 变形破坏 返修支护控制 

分 类 号：TD353[矿业工程—矿井建设]