采空区下巷道支护工程实例
Example of Roadway Support Engineering Under Goaf
马海军1
作者信息
- 1. 山西西山煤电股份有限公司西铭矿,山西 太原 030052
- 折叠
摘要
为解决由于采空区下巷道应力复杂导致传统支护方案无法达到与其支护效果和围岩控制整体性的问题,以3#煤层为例在对其地质条件分析的基础上,基于FLAC3D软件对采空区应力场分布进行分析,为后续支护方案设计奠定基础;通过理论计算重点对回采巷道内错区段和外错区段进行针对性的支护设计,并通过实测验证了支护效果.
Abstract
In order to solve the problem that traditional support schemes cannot achieve the same support effect and overall control of surrounding rock due to the complex stress of the roadway under the goaf,taking the 3#coal seam as an example,based on the analysis of its geological conditions,the stress field distribution in the goaf was analyzed using FLAC3D software,laying the foundation for the subsequent support scheme design.Through theoretical calculations,targeted support design was carried out for the internal and external staggered sections of the mining roadway,and the support effect was verified through actual measurements.
关键词
采空区/锚杆/锚索/回采巷道/移近量Key words
goaf/anchor rod/anchor cable/mining roadway/proximity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据