Comparison of Slope Response Based on Two Kinds of Dynamic Consolidation Finite Element Method

被引：0
作者：
Li, Rongjian [1 ,2 ]
Liu, Junding [1 ]
Yan, Rui [1 ]
Fan, Wen [2 ]
机构：
[1] Xian Univ Technol, Inst Geotech Engn, Xian, Peoples R China
[2] Changan Univ, Minist Land & Resources, Open Res Lab Geotech Engn, Xian, Peoples R China
来源：
DISASTER ADVANCES | 2013年 / 6卷
基金：
中国国家自然科学基金;
关键词：
Earthquake; Dynamic response; Dynamic consolidation; Finite element method; Geotechnical centrifuge model test; EARTHQUAKE; LANDSLIDE; BEHAVIOR;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Slope instability and foundation liquefaction caused by earthquakes are important research issues in geotechnical earthquake engineering. To analyse the effect of foundation liquefaction on the laws of slope acceleration, deformation and stability, the dynamic slope responses to a saturated foundation are studied and compared using nonlinear dynamic finite element methods based on the equivalent viscoelastic constitutive and elastic plastic constitutive models. The influence of a saturated foundation on the characteristics of dynamic pore pressure in the foundation, seismic acceleration and slope deformation is verified and analysed using a dynamic centrifuge model test. The dynamic pore pressure in the foundation greatly increases and results in foundation liquefaction. Therefore, heavy slope deformation caused by foundation liquefaction has a strong effect on slope instability during an earthquake. In addition, the dynamic true-coupled consolidation method is found to be superior to the quasi-coupled consolidation method.
引用
收藏
页码：85 / 92
页数：8
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