摘要
本文采用粘弹塑性模型对软岩巷道的流变特性进行有限元数值模拟分析。给出了软岩巷道应力、位移随时间的变化规律，详细讨论了支护压力、软岩体积膨胀和强度弱化对巷道稳定性的影响，为软岩巷道支护设计提供了一些有益的结论与建议。
In this paper, a viscoplastic model has been adopted to carry out the finite element numerical simulation analysis of the time-dependent behaviours of soft-rock tunnel. The distribution of stresses andthe change of displacement of soft-rock tunnels are given with time and effects of support pressure,volumetric dilantancy of soft-rock and strength deteriorating on the stabilities of tunnels are discussedin details. Some useful conclusions and suggestions are provided for support designs of soft rock tunnels.
出处
《中国矿业》
1996年第2期43-48,共6页
China Mining Magazine
关键词
软岩巷道
有限元
数值模拟
粘弹塑性模型
Soft-rock tunnel, Viscoplastic deformation, Finite element numerical simulation, Volumetric dilantancy
