深部高应力软岩条件下底抽巷支护技术优化及应用  

Optimization and Application of Support Technology of Bottom Pumping Roadway under the Condition of Deep High Stress Soft Rock

作　　者：孟冯超 Meng Fengchao(Henan Energy and Chemical Group Co.,Ltd.,Henan Coking Coal Energy Co.,Ltd.,Science and Technology Research Institute,Henan Jiaozuo 454150)

机构地区：[1]河南能源化工集团有限公司河南焦煤能源有限公司科学技术研究所,河南焦作454150

出　　处：《山东煤炭科技》2022年第5期87-90,共4页Shandong Coal Science and Technology

摘　　要：为解决焦作矿区深部高应力、软岩以及强采动影响下底抽巷巷道变形量大、局部区域破坏严重的问题,综合采用现场调研、理论分析、数值模拟和井下试验等多种方法,分析归纳了焦作矿区深部底抽巷变形破坏原因及影响因素,提出深部底抽巷“高预紧力锚网索喷+注浆”联合支护技术方案。现场应用表明:联合支护技术取得了良好的支护效果,巷道变形量明显减小。In order to solve the problems of large deformation and serious damage in local area under the influence of deep high stress,soft rock and strong mining in Jiaozuo mining area,many methods such as field investigation,theoretical analysis,numerical simulation and underground test are comprehensively adopted.In this paper,the causes and influencing factors of deformation and failure of deep bottom pumping roadway in Jiaozuo mining area are analyzed and summarized,and the combined support technical scheme of"high pretension anchor net cable shotcreting+grouting"is put forward.The field application shows that the combined support technology has achieved good support effect,and the roadway deformation is obviously reduced.

关 键 词：底抽巷 高应力 软岩 支护 

分 类 号：TD353[矿业工程—矿井建设]