唐山矿回采巷道支护参数优化研究  

Research on Support Parameters Optimization of Mining Roadway in Tangshan Mine

作　　者：张巨川 訾杨 魏晓翔 石增柱 李辉亮 ZHANG Juchuan;ZI Yang;WEI Xiaoxiang;SHI Zengzhu;LI Huiliang(Tangshan Mining Branch of Kailuan Group,Tangshan 063000,China;Yulin Yanghuopan Mining Co.,Ltd.,Yulin 719000,China;School of Energy and Mining Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]开滦集团唐山矿业分公司,河北唐山063000 [2]榆林市杨伙盘矿业有限公司,陕西榆林719000 [3]中国矿业大学(北京)能源与矿业学院,北京100083

出　　处：《煤炭技术》2025年第3期39-43,共5页Coal Technology

摘　　要：针对唐山矿受动力灾害影响采用锚杆索支护,而现有锚杆索支护参数缺乏准确依据,工作面巷道可能存在安全隐患的问题。通过钻孔窥视、数值模拟、现场试验等展开了系统的研究,得到以下结果:巷道围岩的破坏主要集中在浅部,随深度增加局部表现为裂隙发育、孔壁粗糙,具有明显的区域特征,巷道顶板的岩性为碳质泥岩、粉砂岩、中砂岩;巷道围岩应力分布具有非对称性,巷道顶板与右帮受采动影响较大,对左帮与底板影响较小,得到了围岩塑性区的分布与破坏深度。根据研究结果提出了优化支护参数,并进行了现场工业性试验,通过表面位移与深基点位移监测,发现优化段支护效果较好,可以采用优化支护参数。Due to the influence of dynamic disaster,Tangshan coal mine adopts bolt and cable support,but the existing bolt and cable support parameters are lack of accurate basis,and there may be potential safety hazards in working face roadway.Through drilling peep,numerical simulation and field test,the following results are obtained:the failure of surrounding rock is mainly concentrated in the shallow part,as the depth increases,the local manifestations are developed fissures and rough hole walls,which has obvious regional characteristics,the rock character of roadway roof is carbonaceous mudstone,siltstone and medium sandstone;the stress distribution of roadway surrounding rock is asymmetric,the roof and right side of the roadway are greatly affected by mining,while the left side and floor are less affected,the plastic zone of the floor extends to the left side and develops slowly to the deep,the distribution and failure depth of plastic zone are obtained.According to the research results,the supporting parameters are optimized,and the field industrial test is carried out.Through the surface displacement and deep base point displacement monitoring,it is found that the supporting effect of the optimized section is better,and the optimized supporting parameters can be used.

关 键 词：巷道围岩 支护技术 钻孔窥视 数值模拟 参数优化 

分 类 号：TD353[矿业工程—矿井建设]