论文部分内容阅读
深井三软煤巷是地压大围岩变形剧烈的一类极难维护回采巷道。分析该类巷道围岩的层状赋存特点及软弱破碎条件，提出加固帮角控制围岩稳定、高阻让压支护限制围岩变形和强化顶板保证安全的支护原理，并研究了合理的锚杆支护技术和帮顶锚固方式，包括顶板全长树脂锚固锚带网支护与两帮角小孔径加长树脂锚固可拉伸锚杆支护技术。最后介绍一个工程实例
Deep soft coal lava is a kind of extremely difficult maintenance roadway with drastic deformation of large surrounding rock. This paper analyzes the stratified occurrence characteristics and weak crushing conditions of surrounding rock in this kind of roadway and puts forward the principle of reinforcement and control of surrounding rock stability and high resistance so that the pressure support can limit the deformation of surrounding rock and strengthen the roof to ensure the safety. Bolt support technology and help the top of the anchorage, including the full length of the resin roof anchor net with two small angle of the hole to extend the length of resin anchoring stretch bolt support technology. Finally introduce a project example