摘要
阐述了锚杆锚固力随巷道围岩变形损伤而呈现的上升、稳定、衰减和失效的变化规律．提出了提高锚杆预应力，采用全长树脂锚固，可明显改善锚杆的实际工作特性，实现锚杆强初撑、急增阻和高阻力，提高围岩的自承力，从而有效控制软岩、采动巷道的围岩变形．
The laws of bolt resistance changing with deformation and damage of rocks around roadway were discussed, which show a rising, stabilizing, declining and efficiency losing process of bolt resistance. It was put forward that to enhance prestress and use fully grouted bolts can notably improve the in situ working characteristics of bolts. Through realizing large prestress, fast resistance increasing and high working resistance, the deformation of softrock and mining affected roadways can be controlled effectivelly.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2000年第1期5-8,共4页
Journal of China University of Mining & Technology
基金
高等学校博士学科点专项科研基金!97029006
关键词
巷道
锚杆
围岩控制
支护机理
巷道支护
阻力
roadway
bolt
controlling of rocks around roadway
supporting mechanism
