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摘要：
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依据加权余量法原理,推导了确定桩与液化土层相互作用振动台模型试验动力p-y曲线的方法。分析了具有不同初始相对密度的土层在液化过程中动力p-y曲线的弱化以及桩土相互作用阻尼的变化,对动力p-y曲线和拟静力弱化p-y曲线进行了比较。结果表明,依据静力p-y曲线、按折减系数法确定拟静力弱化p-y曲线时,折减系数的取值不仅取决于土层初始相对密度,还与土层的埋深有关。
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A method to determine cyclic p-y curves of pile-soil interaction by shaking table model tests is developed using the weighted residual principle. The degradation of cyclic p-y curves and the soil-pile interaction damping were analyzed for strata with different initial relative density. The cyclic p-y curves were compared with the pseudo static degraded p-y curves. The results show that the p-multiplier depends not only on the initial relative density but also the depth of strata if the pseudo static degradation p-y curve is determined using the p-multiplier method.
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基金项目：
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国家自然科学基金资助项目(50579050)
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作者简介：
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参考文献：
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