煤柱下方巷道变形失稳规律分析及控制
Analysis and Control of Deformation and Instability Patterns in Roadways Underneath Coal Pillars
赵永智1
作者信息
- 1. 晋能控股煤业集团马脊梁矿,山西 大同 037003
- 折叠
摘要
为解决煤柱下方回采巷道在实际开采中变形严重以及围岩破坏的问题,在对现场条件及支护现状分析的基础上,对当前支护状态下回采巷道的失稳特征进行综合;提出了对回采巷道补强加固支护的方案,并对方案进行详细设计;最后,通过实践生产验证了补强加固卸压方案应用后对围岩的控制效果.
Abstract
In order to solve the problems of severe deformation and surrounding rock damage in the mining roadway under the coal pillar during actual mining,based on the analysis of the site conditions and support status,the instability characteristics of the mining roadway under the current support state are comprehensively analyzed.A plan is proposed for reinforcing and supporting the mining roadway,and a detailed design of the plan is conducted.Finally,the control effect of the reinforcement and pressure relief scheme on the surrounding rock was verified through practical production.
关键词
煤柱/回采巷道/注浆加固/切顶卸压/锚杆锚索补强支护Key words
coal pillar/mining roadway/grouting reinforcement/cutting the top to relieve pressure/anchor bolt and anchor cable reinforcement support引用本文复制引用
出版年
2024
NETL
NSTL
万方数据