节点文献
地震时饱和黄土边坡的失稳模式分析
Instability modes of saturated loess slopes during earthquake
【摘要】 考虑到地震荷载作用下饱和黄土的孔隙水压力增长模式及液化规律,建立了饱和黄土无限边坡的动力稳定性分析模型。分析结果表明,此类边坡的失稳可分为液化型失稳和滑动型失稳两种基本形式,并给出了二者的判别指标。
【Abstract】 Based on the increasing mode of pore pressure and liquefaction mechanism of saturated loess, a model to analyse the dynamic stability of infinite slopes of saturated loess is presented. By using the present model, the failure of these slopes is classified into two modes: one due to liquefaction and another duo to sliding, which can be distinguished by a suggested index.
【关键词】 饱和黄土;
动孔隙水压力;
屈服地震系数;
动力稳定性;
【Key words】 saturated loess; seismic induced pore pressure; yield seismic coefficient; dynamic stability;
【Key words】 saturated loess; seismic induced pore pressure; yield seismic coefficient; dynamic stability;
【基金】 河南省教育厅科技攻关项目资助(2004601068)
- 【文献出处】 河南科学 ,Henan Science , 编辑部邮箱 ,2005年01期
- 【分类号】TU441.35
- 【下载频次】148