砂土液化及振动台实验研究
首发时间:2006-12-28
摘要:本文分析了砂土液化产生的机理以及其抗液化能力的因素,进而得出抗液化能力和弹性剪切模量的相互关系。最后结合模型箱振动台实验充分展现了砂土液化的整个过程,通过分析液化前后不同时刻砂土层的加速度时程曲线图,观察得出土层加速度随着时间增大的变化规律与振动台输入振动波与砂土中孔压增长的相互影响,得出一些有意义的结论。
关键词: 砂土液化 弹性模量 振动台 孔隙水压
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Sand liquefaction and shaking table test research
Abstract:This paper analyses the mechanism of the sand liquefaction generation and the factors of liquefaction resistant ability, proceeds to Surmise correlation between liquefaction resistance and elastic shear modulus. Finally sufficiently displayed the entire sand liquefaction process combining with the shaking table test, by analysing the before and behind of liquefaction in different moment with the curve reflecting the acceleration timing route for the sand layer, observed and achieved the result that the variation regular of sand layer’s accelerating correspond with the time increase and the interrelationship between the vibration waves importing to the shaking table and the pore pressure increment in the sand , so get some meaningful conclusions.
Keywords: sand liquefaction elastic modulus shaking table pore water pressure
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No.1050894332116729****
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