Influence of fabric anisotropy on seismic responses of foundations  

作　　者：Jin Qin Xiangwu Zeng Haiyan Ming 

机构地区：[1]Department of Civil Engineering, Case Western Reserve University [2]Department of Civil Engineering, Shenzhen University

出　　处：《Journal of Rock Mechanics and Geotechnical Engineering》2015年第2期147-154,共8页岩石力学与岩土工程学报（英文版）

基　　金：support by National Natural Science Foundation of China under Grant No. 51278307

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 significantdamage to the building itself. Fabric anisotropy of soil grains is considered to be an important factor indynamic soil response based on previous researches and laboratory tests. However, the limited availabilityof real physical data makes it less persuasive. In this study, a shake table installed on ageotechnical centrifuge is used to provide the designed seismic motions, and therefore, to simulate therealistic 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 designare also discussed. 2015 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier B.V. All rights reserved.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 significantdamage to the building itself. Fabric anisotropy of soil grains is considered to be an important factor indynamic soil response based on previous researches and laboratory tests. However, the limited availabilityof real physical data makes it less persuasive. In this study, a shake table installed on ageotechnical centrifuge is used to provide the designed seismic motions, and therefore, to simulate therealistic 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 designare also discussed. 2015 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier B.V. All rights reserved.

关 键 词：Soil mechanics Angular sand Centrifuge modeling Fabric anisotropy Seismic response 

分 类 号：TU435[建筑科学—岩土工程]