Influence of fabric anisotropy on seismic responses of foundations

Journal of Rock Mechanics and Geotechnical Engineering

Xiangwu Zeng¹  Jin Qin¹  Haiyan Ming² 

[1] Department of Civil Engineering, Case Western Reserve University, Cleveland, OH 44106, USA;Department of Civil Engineering, Shenzhen University, Shenzhen 518060, China;

关键词: Soil mechanics;    Angular sand;    Centrifuge modeling;    Fabric anisotropy;    Seismic response;   

DOI  :  10.1016/j.jrmge.2015.02.003

来源: DOAJ

【 摘 要 】

Earthquakes, as one of the well-known natural disasters, are highly destructive and unpredictable. Foundation failure due to liquefaction induced by earthquakes can cause casualties as well as significant damage to the building itself. Fabric anisotropy of soil grains is considered to be an important factor in dynamic soil response based on previous researches and laboratory tests. However, the limited availability of real physical data makes it less persuasive. In this study, a shake table installed on a geotechnical centrifuge is used to provide the designed seismic motions, and therefore, to simulate the realistic earthquake motion to foundations. Important parameters in the responses such as acceleration, excess pore pressure and deformation are evaluated to investigate the influence. Implications for design are also discussed.

【 授权许可】

Unknown