摘要
造成巷道变形破坏的主要原因是围岩松动圈的扩大,因此研究松动圈的发展变化很有意义。基于巷道围岩钻孔可视化探测结果,验证前苏联E.1.Shemyakin等人所提出的"不连续区"松动圈演化规律,并提出了"不连续类拱结构"的概念。实践证明,锚网索梁喷注联合支护方案能明显提高破碎围岩的整体强度,增强围岩承载能力和稳定性,更好的控制巷道的变形。
Failure and deformation of roadway is result of the ex- pansion of loose circle in surrounding rock, so the research on development and changes of loose circle is very significant. In this paper, based on results of surrounding rock visualization de- tection by drilling, the ＂ discontinuous＂ loose circle evolution regular proposed by the former Soviet Union, E. 1. Shemyakin et al is validated,and the concept of discontinuous arch structure is put forward. Experience has proved that cable anchor matching steel band and bolt-grouting combined support can improve the overall strength of the surrounding rock evidently, and improve the beating capability and the stability of surrounding rock to control the deformation of roadway.
出处
《矿业研究与开发》
CAS
北大核心
2013年第4期30-32,87,共4页
Mining Research and Development
基金
国家重点基础研究发展计划(973)子课题(2010CB226805-02)
中国博士后科学基金项目(20100471561)
青年科学基金项目(51204102)
山东科技大学科研创新团队支持计划项目(2010KYTD105)
山东科技大学研究生创新基金项目(YCB120104)
关键词
开拓巷道
深井
探测
支护
松动圈
Development roadway, Deep well, Detection, Support, Loose circle
