杨家山矿区围岩力学规律及控制技术研究
Mechanical Law and Control Technology of Surrounding Rock in Yangjiashan Mining Area
孙钦阳 1王遥 2赵鹏涛2
作者信息
- 1. 湖南煤业股份有限公司,湖南 长沙 410118
- 2. 湖南省瓦斯治理和利用工程研究中心有限公司,湖南 长沙 410007
- 折叠
摘要
杨家山矿区主采 3 号煤层,全区受杨家山向斜构造影响,其岩层赋存条件复杂.基于杨家山矿区 5 个矿井不同开采水平巷道的围岩情况,对该矿区井巷围岩情况展开了分析,总结了矿区围岩的破坏机理,并针对现有支护方式存在的不足,采用了注浆加固、长短锚索补强和柔性护表等方式对巷道支护进行优化,为岩巷的正常使用和日常维护提供了理论支持.
Abstract
The Yangjiashan mining area mainly mines the No.3 coal seam,and the entire area is influenced by the Yangjiashan syncline structure,resulting in complex rock strata occurrence conditions.Based on the surrounding rock conditions of different mining levels in five mines in Yangjiashan mining area,the surrounding rock conditions of the mine roadways were analyzed,and the failure mechanism of the surrounding rock in the mining area was summarized.In response to the shortcomings of the existing support methods,grouting reinforcement,long and short anchor cable reinforcement,and flexible protection surface were adopted to optimize the roadway support,providing theoretical support for the normal use and daily maintenance of the rock roadways.
关键词
杨家山矿区/围岩破坏/围岩力学/井巷支护Key words
Yangjiashan mining area/surrounding rock failure/surrounding rock mechanics/support for shafts and roadways引用本文复制引用
出版年
2024
NETL
NSTL
万方数据