厚煤层一次采全高支架围岩作用研究  

Once Mining Full Height Support Surrounding Rock Function on Thick Coal Seam

作　　者：王志强 连永权[2] 倪亮 史晓东[2] 

机构地区：[1]潞安环能股份公司王庄煤矿,山西长治046031 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室力学与建筑工程学院,江苏徐州221008

出　　处：《煤》2014年第6期8-12,23,共6页Coal

摘　　要：支架围岩作用是影响煤矿大采高一次采全高技术效率的关键因素之一。文章以王庄煤矿8101大采高开采工作面为工程背景,综合运用理论分析、数值计算和相似模拟等手段,系统研究了支架-围岩的相互作用机理。得到了厚煤层一次采全高支架与围岩作用关系,确定了能够满足安全高效生产的所需的支架的工作阻力的计算方法;分析了煤壁片帮特征及片帮机理,大采高工作面煤壁破坏方式以拉裂式片帮为主,提出了对应的煤壁注浆加固技术。相关研究成果在指导现场实践过程中,托住了破碎直接顶,控制住了煤壁破坏,保证了工作面安全快速推进,取得了很好的效果。Effect of support and surrounding rock is one of the key factors of high once mining full height mining technology efficiency of mine. The 8101 large mining height working face as the engineering background,analysis,numerical calculation and simulation and oth-er means of integrating the theory,it studied the interaction mechanism of support and surrounding rock in Wangzhuang Coal Mine. The thick seam mining all high support and surrounding rock interaction,the method to calculate the working resistance can meet the re-quired support safe and efficient production of coal wall;analyzes the characteristics and spalling mechanism,large mining height work-ing face coal wall spalling failure forms of the crack is presented,it made the reinforcement technology of coal wall grouting correspond-ing. Related research results in the field practice,this method the broken roof,control of the coal wall damage,ensure the safety in work-ing face rapid development,and achieved very good results.

关 键 词：支架围岩关系 支架工作阻力 煤壁片帮 注浆加固 

分 类 号：TD325[矿业工程—矿井建设]