摘要
为解决普通锚杆支护强度小、支护效果差的问题,将预应力锚杆应用于巷道支护中。以华实矿山31303工作面为研究载体,在分析其顶底板情况并对其围岩稳定性的等级进行划分后,完成了锚杆类型、直径、长度、间排距以及预应力值等支护参数的确定,为提升巷道围岩的支护效果奠定理论基础。
In order to solve the problem of low strength and poor support effect of ordinary bolt support, the prestressed anchor rod is applied to roadway support. After analyzing its roof and floor condition and dividing the grade of surrounding rock stability, the corresponding support parameters such as bolt type, diameter, length, spacing and prestress value are determined, which lays a theoretical foundation for improving the supporting effect of roadway surrounding rock.
作者
郭刚
Guo Gang(Shanxi Huashi Mine Equipment Co., Ltd.,Taiyuan Shanxi 030024)
出处
《机械管理开发》
2020年第10期33-34,145,共3页
Mechanical Management and Development
关键词
预应力
锚杆
巷道围岩
稳定性
支护
prestress
bolt
roadway surrounding rock
stability
support
