松软破碎带巷道围岩变形控制研究  

Study on Deformation Control for Broken Soft Rock Roadway

作　　者：李登月[1] 李大伟[1] 周俊帆[1] 徐基根[2] 

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000 [2]淮北矿业集团朱仙庄矿,安徽淮北235000

出　　处：《煤炭技术》2010年第12期64-66,共3页Coal Technology

摘　　要：通过对朱仙庄矿Ⅱ5行人上山破碎带软岩巷道变形破坏特征的分析,指出巷道失稳变形剧烈的原因在于普通的U型钢可缩支架较低的工作阻力不能很好地阻止围岩进入失稳蠕变阶段。根据二次支护原理,提出采用超高强度型钢支架来控制围岩的这种流变特性。Taking No.Ⅱ 5 person rise roadway in Zhuxianzhuang Mine as an example,the characteristics of deformation and failure in the broken soft rock roadway are analyzed.It is pointed out that the intense deformation of tunnel instability is due to ordinary contractible U-shaped steel supports the work of lower-resistance are not well to block access to unstable rock creep stage.According to the secondary support principle,a new support method is proposed,the ultra-high strength steel supports is used to control the rheological properties of this rock.

关 键 词：破碎带巷道 二次支护 大刚度高强度支护 

分 类 号：TD353[矿业工程—矿井建设]