深井高地应力让压支护技术及应用  

Technology and Application of Yield Support for High Ground Stress in Deep Well

作　　者：秦忠诚[1,2] 秦琼杰 陈文龙[1] 杨方旭[1] QIN Zhongcheng QIN Qiongjie CHEN Wenlong YANG Fangxu(School of Mining and Safe Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China State Key Laboratory of Mine Disaster Prevention and Control, Qingdao, Shandong 266590, China)

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛市266590 [2]矿山灾害预防控制国家重点实验室,山东青岛市266590

出　　处：《矿业研究与开发》2017年第3期93-97,共5页Mining Research and Development

基　　金：国家自然科学基金资助项目(51604164)

摘　　要：针对深井开采地应力较高普通锚杆容易拉断失效的问题,以新矿集团某矿1611上平巷为背景,从力学分析和现场试验入手,探讨了利用让压支护技术解决深井高地应力下巷道破坏严重的可行性与实施途径。应用结果表明,让压支护技术大大减少了锚杆在深井巷道中由于围岩应力急剧变化拉断失效的现象,有效地控制了巷道围岩变形,实践证明,是解决深井高地应力支护问题的一种有效手段。Because of the high ground stress in deep well, the ordinary bolt is easy to have tensile failure. Aiming at the problem, taking the 1611 upper-level roadway in a coal mine of Xinwen Mining Group as the background, the feasibility and implementation of using yield holt technology to solve the serious roadway failure under high ground stress of deep well were discussed by mechanical analysis and field test. The results showed that the yield bolt technology greatly reduced the tensile failure of bolt in deep roadway due to the sudden change of surrounding rock stress, and effectively controlled the roadway deformation. The practice proved that the yield bolt technology was an effective method to solve the support problem of high ground stress in deep well.

关 键 词：高地应力 巷道支护 让压锚杆 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]