高速铁路路基本构模型理论公式推导数据集

推导考虑小应变和时间效应的路基本构模型，基于超固结土的UH本构模型，引入弹性滞回关系反映小应变刚度，用以描述初始高刚度和非线性刚度衰减特征，同时引入了粘塑性变形计算公式计算次固结变形，进而使得新开发路基本构模型能够实现路基工后变形的预测，数值主要包含本构模型建模过程及三维化相关理论公式。Derive a subgrade constitutive model considering small strain and time-dependent effects based on the UH constitutive model for overconsolidated clays. An elastic hysteretic relationship is introduced to reflect small-strain stiffness, aiming to describe the initial high stiffness and nonlinear stiffness attenuation characteristics. Meanwhile, a viscoplastic deformation calculation formula is adopted to compute secondary consolidation deformation, thereby enabling the newly developed subgrade constitutive model to predict post-construction deformation of subgrade. The numerical content mainly covers the modeling process of the constitutive model and relevant theoretical formulas for its three-dimensional extension.

搜集汇总

背景与挑战

背景概述

该数据集专注于高速铁路路基的本构模型理论公式推导，基于超固结土的UH模型，通过引入弹性滞回关系反映小应变刚度特征，并采用粘塑性变形计算公式处理次固结变形，旨在实现路基工后变形的预测。数据内容主要包括模型建模过程及三维化的相关理论公式。