砂性地层地震反应离心模型试验研究
Dynamic centrifuge model test of sandy layer
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摘要: 介绍了离心模型试验技术在地震工程研究中的应用原理与方法。运用离心模型试验技术 ,研究了砂性地层在地震作用下土层加速度反应、振动超静孔压的产生、消散过程 ,真实地再现了地震时土层液化的主要特性。结果表明离心模型试验技术是研究地层地震反应的有效手段 ,所得结论对进一步开展砂土地震反应与液化机理研究有积极借鉴意义。Abstract: In recent years,because of the development of earthquake simulators, the technique of centrifuge modeling is getting attention widely in geotechnical engineering research area. In this paper the dynamic method of the centrifuge modeling is introduced and the centrifuge model tests are carried out to study the liquefaction and dynamic properties of sand deposits.