摘要
以某矿707工作面回风巷的支护试验为基点,运用FLAC3D数值模拟软件对高强高预紧力锚杆支护进行模拟、分析,并采用高强高预紧力让压锚网索耦合支护方案进行现场试验并对现场进行矿压观测,结果表明高强高预紧力让压锚网索耦合支护技术能够实现软岩巷道的稳定,能够有效地控制复杂构造软岩巷道的变形,为该类巷道支护设计提供了重要的理论和工程实践参考。
Taking a mine 707 tailentry supporting test as the basis, using FLAC3D numerical simulation soRware to simulate and analyze the supporting effect of high strength and high pre-tightening force bolting, the high strength and high pre-tightening force of yielding anchor mesh coupling support scheme were used in field, and get the site observation results, which showed that the high strength and high preload pressure bolt mesh cable coupling support technology can realize the soft rock roadway stability, can effectively control the deformation of the complex structure of soR rock roadway, which provides an important theoretical and practical reference for the design of roadway support.
出处
《山东煤炭科技》
2016年第11期48-50,55,共4页
Shandong Coal Science and Technology
关键词
让压锚杆
耦合
支护
高应力
let the perssure force coupling support high stress
