A simplified approach for settlement analysis of single pile and pile groups considering interaction between identical piles in multilayered soils
A simplified approach for settlement analysis of single pile and pile groups considering interaction between identical piles in multilayered soils
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DOI：
10.1016/j.compgeo.2010.08.003
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发表时间：
2010-11
影响因子：
5.3
通讯作者：
Zhang Qianqing;Zhong-miao Zhang;Jing-yu He
中科院分区：
文献类型：
--
作者：
Zhang Qianqing;Zhong-miao Zhang;Jing-yu He
本文提出了一种新的分析成层地基中单桩弹塑性性状的简便方法。一个模型采用双曲线模型来描述桩身剪应力与桩周位移之间的非线性关系，另一个模型采用双线性硬化模型来模拟桩端沉降与桩端动荷载之间的关系。进一步分析了成层土中同桩间的相互作用，包括桩身与基础的相互作用。两个现场试验的荷载-沉降响应的比较，以及仪器在多层土壤中，所提出的简单方法的有效性和准确性。本文能快速估算层状地基中单桩和群桩的沉降，从而节省时间和费用。
A new and simple approach is presented to analyze the elastic–plastic behavior of a single pile in layered soils using two models. One model adopts a hyperbolic approach to describe the nonlinear relationship between the shaft shear stresses and the displacement surrounding the pile shaft, and the other model uses a bilinear hardening model to simulate the relationship between the settlement and the mobilized load at the pile end. Furthermore, the interaction between identical piles including the pile shaft and the base interaction in multilayered soils is analyzed. Comparisons of the load–settlement responses for two well-instrumented field tests in multilayered soils are given to demonstrate the effectiveness and accuracy of the proposed simple method. This present paper enables a quick estimate of the settlement of a single pile and a pile group embedded in layered soils, resulting in savings in time and cost.