深井沿空留巷扩刷修复技术及应用  

TECHNOLOGY AND APPLICATION OF REPARATION IN DEEP GOB-SIDE ENTRY RETAINING

作　　者：张农[1,2,3] 张志义[1,2] 吴海[1,2,3] 曹朋[1,2] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]中国矿业大学深部煤炭资源开采教育部重点实验室,江苏徐州221116 [3]湖南科技大学煤矿安全开采技术湖南省重点实验室,湖南湘潭411201

出　　处：《岩石力学与工程学报》2014年第3期468-474,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：高等学校博士学科点专项科研基金项目(20110095110013);"长江学者和创新团队发展计划"创新团队项目(IRT1084)

摘　　要：以朱集矿埋深900 m首采工作面沿空留巷扩刷修复工程为背景,采用现场实测和理论分析的方法分析深井留巷扩刷修复前围岩变形、应力、结构等状态,提出留巷扩刷修复结构临近失稳的概念,确定留巷扩刷修复的合理时机,组织留巷扩刷修复时的合理工序,制定留巷扩刷修复巷道的主被动协同支护方案。研究结果成功运用于朱集矿深部留巷扩刷修复工程,围岩监测结果表明,留巷扰动变形在修复后得到有效控制,各项指标满足下一工作面回采要求。Based on the gob-side entry retaining reparation engineering of first coal mining face in Zhuji mine around 900 m underground,deformation,stress and structure state of roadway surrounding rock before reparation were analyzed by field measurement and theoretical method;the conception of“critical structure between instability and stability”of gob-side entry retaining reparation was proposed;reasonable repairing time and construction process were determined;initiative-passive collaborative supporting system was concluded. Research result was applied to the gob-side entry retaining reparation engineering in Zhuji mine successfully. The results of ground pressure monitoring show that the deformation of this repaired roadway is controlled effectively;and all indices satisfy the requirements of next mining face.

关 键 词：采矿工程 深井巷道 沿空留巷 扩刷修复 大变形 协同支护 

分 类 号：TD32[矿业工程—矿井建设]