Dynamic response records of pile performance during earthquakes are limited mainly due to the challenges of recording the seismic soil–pile response. This limitation has led to an inadequacy in providing a standardized basis for the calibration and validation of the available analytical and numerical methods developed for seismic soil–pile superstructure interaction problems. To bridge this gap, a series of numerical simulations of scaled, shaking table tests of model piles in soft clay has been developed in the current study. This paper aims to accurately identify all aspects and critical parameters in the numerical simulation and propose the most suitable soil constitutive model. Three soil constitutive models are selected as advanced models for soft soil, namely, the modified Mohr–Coulomb, Drucker–Prager/cap plasticity, and Cam–clay models. Similar to the physical test case study, this numerical analysis uses dimensional analysis techniques to identify scale modelling criteria and develop a scaled soil and pile-supported structure model correctly. The 3D nonlinear numerical models are developed using the Abaqus software.

地震期间桩性能的动态响应记录受到限制，这主要是由于记录地震土桩反应的挑战。这种局限性导致无法为为地震土-桩上部结构相互作用问题开发的可用分析和数值方法的校准和验证提供标准化基础。为了弥合这一差距，目前的研究中已开发了一系列对软黏土中模型桩进行比例缩放，振动台试验的数值模拟。本文旨在准确地识别数值模拟中的所有方面和关键参数，并提出最合适的土壤本构模型。选择了三种土壤本构模型作为软土的高级模型，即改良的Mohr-Coulomb模型，Drucker-Prager /盖可塑性模型和Cam-粘土模型。与物理测试案例研究相似，此数值分析使用尺寸分析技术来确定尺度建模标准，并正确建立尺度化的土和桩支撑结构模型。3D非线性数值模型是使用Abaqus软件开发的。