极破碎围岩巷道锚注技术研究  

Researches on Bolt-grouting Technology for Seriously Broken Surrounding Rock Roadway

作　　者：南存全[1] 姜聚宇 于永江[1] 

机构地区：[1]辽宁工程技术大学矿业学院,阜新123000

出　　处：《世界科技研究与发展》2015年第5期498-502,共5页World Sci-Tech R&D

基　　金：国家自然科学基金(51174106)资助

摘　　要：以开滦范各庄极破碎围岩回风巷道修复为研究背景,充分调查该回风巷道的原有支护情况,针对普通的锚杆支护很难达到修复目的的情况,提出采用以"锚、喷、注"相结合的支护工艺。应用有限差分数值模拟软件FLAC2D对2100石门破碎巷道在锚喷支护、锚注支护两种方式下的垂直应力分布、屈服状态、位移量分布,分别进行数值模拟分析,并且对巷道位移和锚杆压力进行现场监测分析。经验证:锚注支护不仅可以有效控制巷道围岩变形,而且能保障矿井安全高产高效生产。This paper is based on the repairing of seriously broken surrounding air return laneway rock roadway of Kailuan Fangezhuang coal mine. According to adequately investing the exiting support state,it is very difficult to achieve the purpose of repair to use ordinary bolt supporting,the support craft combined with anchor,gush and injecting are put forward. Using finite difference numerical simulation software FLAC2 D to simulate and analyze the vertical stress,yielded state and the displacement distribution under the two supporting modes of bolt-shotcrete support and bolt-grouting support,and also the roadway displacement and bolt stress is monitored and analyzed on the spot. To conclude that bolt-grouting support can not only control the deformation of rock roadway efficiently but also can guarantee safe production of mine in high efficiency.

关 键 词：锚注支护 FLAC2D 围岩控制 支护优化 现场监测 

分 类 号：TD353[矿业工程—矿井建设]