放顶煤巷道锚杆锚索同排支护技术研究  

Research on Bolt and Anchor Cable Support Technology in Same Row of Top Coal Caving Roadway

作　　者：王志刚 贾湛永 刘伟俊 WANG Zhigang;JIA Zhanyong;LIU Weijun(Pangpangta Coal Mine,Huozhou Coal and Electricity Group Lvlin Energy and Chemical Company Limited,Lvliang 033200,China;School of Mechanics and Civil Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]霍州煤电集团吕临能化有限公司庞庞塔煤矿,山西吕梁033200 [2]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤炭技术》2024年第6期18-23,共6页Coal Technology

基　　金：国家自然科学基金项目(52274148)。

摘　　要：针对庞庞塔煤矿大断面放顶煤巷道支护难题,以庞庞塔煤矿5-1061巷为工程背景,综合运用理论分析、数值模拟、现场实测等技术手段,对巷道的变形破坏特征进行了分析。根据原支护方案中的不足,在简要阐述了锚杆锚索同排布置支护技术的支护原理后,提出了支护优化方案,并于现场进行了试验。现场试验结果表明,采用了锚杆锚索同排布置支护技术后,巷道最大顶板下沉量为12 mm,最大两帮移近量为15 mm,巷道变形得到有效控制,亦无网兜现象的发生。In response to the difficult support problem of the large-section caving coal roadway in Pangpangta coal mine,the deformation and failure characteristics of the roadway were analyzed using theoretical analysis,numerical simulation,on-site measurement and other technical means,taking the 5-1061 roadway in Pangpangta coal mine as the engineering background.Based on the deficiencies in the original support plan,after briefly explaining the support principle of anchor rods and cables arranged in the same row,an optimized support plan was proposed and tested on-site.The on-site test results show that after adopting the support technology of anchor rods and cables arranged in the same row,the maximum roof subsidence of the roadway is 12 mm,and the maximum displacement of the two sides is 15 mm.The deformation of the roadway is effectively controlled,and there is no occurrence of mesh pocket phenomenon.

关 键 词：破坏特征 同排布置 数值模拟 现场监测 

分 类 号：TD353[矿业工程—矿井建设]