煤矿断层构造对顶板稳定性的影响与防治  

The influence and prevention of coal mine fault structure on roof stability

作　　者：任杰 Ren Jie(Shanxi Anbiao Inspection and Certification Co.,Ltd.Taiyuan 030031)

机构地区：[1]山西安标检验认证有限公司,山西太原030031

出　　处：《石化技术》2024年第12期96-98,共3页Petrochemical Industry Technology

摘　　要：为了避免煤层顶板事故的发生,保证煤矿安全开采,结合山西省中部某典型断层发育煤矿案例,通过野外地质调查、岩石力学试验和数值模拟等方法,分析了断层构造对顶板稳定性的影响。研究发现,断层倾角和落差是影响顶板稳定性的关键因素。提出了支护方案优化、预加固优化、建立监测预警系统等防治措施。上述措施实施后,研究区内未发生严重的顶板失稳事件,防治措施效果良好。In order to avoid coal seam roof accidents and ensure safe mining in coal mines.Based on a typical fault developed coal mine case in central Shanxi Province,the influence of fault structures on roof stability was analyzed through field geological surveys,rock mechanics tests,and numerical simulations.Research has found that fault dip and drop are key factors affecting roof stability.When the fault dip exceeds 65°,the risk of roof instability significantly increases;For every 1m increase in fault drop,the maximum stress concentration factor of the roof increases by an average of 0.15.In response to the research findings,preventive measures such as optimizing support parameters,pre reinforcement optimization,and establishing monitoring and warning systems were proposed.After the implementation of these measures,no serious roof instability events occurred in the study area,and the preventive measures were effective.

关 键 词：煤矿 断层构造 顶板稳定性 防治 

分 类 号：TD3[矿业工程—矿井建设]