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A Continuum-Based Model for Analysis of Laterally Loaded Piles in Layered Soils

机译:基于连续体的层状土侧向受力分析模型

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摘要

An analysis is developed to calculate the response of laterally loaded piles in multilayered elastic media. The displacement fields in the analysis are taken to be the products of independent functions that vary in the vertical, radial and circumferential directions. The governing differential equations for the pile deflections in different soil layers are obtained using the principle of minimum potential energy. Solutions for pile deflection are obtained analytically, whereas those for soil displacements are obtained using the one-dimensional finite difference method. The input parameters needed for the analysis are the pile geometry, the soil profile, and the elastic constants of the soil and pile. The method produces results with accuracy comparable with that of a three-dimensional finite element analysis but requires much less computation time. The analysis can be extended to account for soil non-linearity.
机译:进行了分析以计算多层弹性介质中侧向荷载桩的响应。分析中的位移场被认为是在垂直,径向和圆周方向上变化的独立函数的乘积。利用最小势能原理,得到了不同土层中桩体变形的控制微分方程。通过解析获得桩的挠度解,而使用一维有限差分法获得土壤位移的解。分析所需的输入参数是桩的几何形状,土壤剖面以及桩和土的弹性常数。该方法产生的结果的准确性与三维有限元分析的结果相当,但是所需的计算时间却少得多。可以扩展分析以解决土壤非线性问题。

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