摘要
通过FLAC3D建立边坡数值模型,对软弱土质的边坡稳定性与破坏性进行分析,当边坡发生滑坡时,滑裂面左侧土体从坡脚处开始将产生"无限大"位移,滑裂面右侧土体保持稳定;渗透力作用在边坡土体,改变了土体的有效应力,土体受到水的作用,减小了土体的强度,使得边坡土体提前进入流塑状态,边坡土体更容易发生剪切破坏;渗流场对边坡表层和内部均有很大影响。
Build slope numerical model by FLAC3D, and numerical simulation of the model,when slope landslide slip crack surface on the left side of the soil mass from the slope toe started to produce ＂infinite＂ displacement, slip crack surface soil on the right side of the stable;Penetration effect on slope soil, changed the effective stress of soil, soil water, reduce the strength of soil, the slope soil flow model in advance into the state, are more likely to happen shear failure of soil slope;Seepage field has a great influence on the slope surface and internal.
出处
《煤炭技术》
CAS
北大核心
2017年第1期168-169,共2页
Coal Technology
基金
国家自然科学基金项目(51574228
51304200)
中国博士后科学基金项目(2013m540477)
中国博士后科学基金特别资助项目(2014t70560)
关键词
边坡稳定
渗流
流固耦合
slope stability
seepage
fluid-structure interaction
