摘要
借助COMSOL软件建立了不同埋深和有无水压的数值计算模型,研究了有水与无水条件下软岩巷道的应力与变形规律。结果表明:软岩巷道蠕变随着埋深的增加而增加,埋深900 m的变形比500 m增大了300%多;在水压的作用下,顶底板和两帮的变形更加严重,有水压下变形比无水压增大30%多。
This paper uses COMSOL software to build numerical calculation models at different depths and with or without water pres-sure, and studys soft rock roadway stress and deformation laws in the hydrous and the anhydrous conditions. The results show that the creep deformation of soft rock roadway increases with the increasing of the depth, the deformation in the buried depth of 900 m increa-ses 300% than in the buried depth of 500 m ; the the deformation in roof and floor and the two sides is more severe in the role of water pressure, the deformation in water pressure increases 30% than the deformation in no water pressure.
出处
《煤矿安全》
CAS
北大核心
2013年第2期53-56,共4页
Safety in Coal Mines
基金
中国博士后基金资助项目(20110491483)
关键词
软岩巷道
时间效应
流固耦合
数值模拟
soft rock roadway
time effect
fluid - solid coupling
numerial simulation
