摘要
针对软岩巷道在地应力作用下变形大、不稳定的特点,利用数值模拟软件FLAC3D模拟分析软岩巷道在地应力作用下的围岩应力、变形情况,对比分析软岩巷道帮部中点位置有无稳定、坚硬的岩层——承载层时应力及变形情况,结果表明,巷道帮部有一层稳定、坚硬的岩层时,软岩巷道围岩的变形减小,应力状态得到了改善。
Aimed at the big deformation and instability of soft roadway under the ground stress, the stress and the deform- ation of surrounding rock were simulated and analyzed by FLACsD. Then the stress and the deformation in the middle sidewall with or without bearing layer were compared and analyzed. The results showed that the deformation of surrounding rock in soft roadway was decreased and the stress was improved when the sidewall had a stable and hard strata.
出处
《矿业研究与开发》
CAS
北大核心
2015年第7期81-83,共3页
Mining Research and Development
基金
国家自然科学基金项目(51374091)
关键词
软岩巷道
承载层
数值模拟
围岩变形
Soft roadway, Bearing layer, Numerical simula-tion, Deformation of surrounding rock
