综掘煤巷过断层支护分析  

Analysing the Support of Cross Faults in Comprehensively Excavated Coal Mines

作　　者：孙宇 Sun Yu(Shanxi Coal Transportation and Marketing Group Lyuliang Co.,Ltd.,Xiaoyi Shanxi 032300,Ch)

机构地区：[1]山西煤炭运销集团吕梁有限公司,山西孝义032300

出　　处：《机械管理开发》2024年第4期305-307,共3页Mechanical Management and Development

摘　　要：针对2315辅助进风巷掘进期间揭露断层问题,为确保巷道安全高效掘进并实现断层影响区围岩变形有效控制,结合现场条件提出顶板采用全锚索支护、巷帮采用全长自巩固锚杆支护、在断层破碎带采用注浆锚索补强;考虑2315辅助进风巷后期切顶留巷需要,针对性对顶锚索及巷帮锚杆布置方案进行设计.现场应用后,2315辅助进风巷在断层影响范围内围岩始终保持稳定,围岩变形量在允许范围内,现场采用的支护措施可满足巷道快速掘进以及破碎围岩变形有效控制需要.Aiming at the problem of exposing faults during the excavation of 2315 auxiliary air inlet,in order to ensure the safe and efficient excavation of the roadway and achieve the effective control of peripheral rock deformation in the area affected by faults,it is proposed that the top plate adopts the full support of anchor ropes,and the roadway gang adopts the full-length self-consolidating anchor support,and the grouting anchor ropes are used to supplement the reinforcement of the fault crushed zone;taking into consideration of the later needs of cutting the top of 2315 auxiliary air inlet to stay in the roadway,it is designed to target at the top anchor ropes and the gang anchors layout scheme.Considering the needs of 2315 auxiliary air inlet in the later stage of cutting the top and staying in the lane,the top anchor cable and the gang gang arrangement scheme is designed.After the application on site,the peripheral rock in 2315 auxiliary air inlet lane is always stable within the influence of faults,and the amount of peripheral rock deformation is within the permissible range,and the support measures adopted on site can satisfy the needs of rapid roadway boring and effective control of deformation of broken peripheral rock.

关 键 词：巷道掘进 综掘 断层 破碎围岩 构造应力 

分 类 号：TD353[矿业工程—矿井建设]