深部软岩巷道支护对策研究
Research on Countermeasures for Supporting Deep Soft Rock Roadway
张欣1
作者信息
- 1. 晋能控股集团同发东周窑煤业公司,山西大同 037003
- 折叠
摘要
深部软岩围岩稳定性控制问题日益突出.以东周窑煤业为研究区,通过现场勘察获得了巷道变形破坏特征;通过数值模拟分析了巷道变形、围岩倾斜与软弱层位置之间的关系,得出了软岩巷道的变形破坏特征影响因素;基于数值模拟结果,提出了深部软岩巷道支护新型设计方案.结果表明,新型支护方案控制效果良好,对类似工程具有指导意义.
Abstract
The problem of controlling the stability of deep soft rock surrounding rock is becoming more and more prominent.Taking Dongzhouyao coal mine as the study area,the deformation and damage characteristics of the roadway were obtained through field survey.The relationship between roadway deformation,surrounding rock inclination and the location of the weak layer was analyzed through numerical simulation,and the factors influencing the deformation and damage characteristics of the soft rock roadway were derived.Based on the numerical simulation results,a new design scheme of deep soft rock roadway support is proposed.The results show that the new support scheme has good control effect and is of guiding significance for similar projects.
关键词
巷道支护/深部煤层/软岩巷道Key words
roadway support/deep coal seam/soft rock roadway引用本文复制引用
出版年
2024
NETL
NSTL
万方数据