双模量理论及其在水泥混凝土路面中的应用综述  

Bi-modulus theory and its application in cement concrete pavement:a review

作　　者：潘勤学[1,2,3] 胡嘉 郑健龙[1,2,3] 黄逸夫 赵晨 徐磊[1] PAN Qinxue;HU Jia;ZHENG Jianong;HUANG Yifu;ZHAO Chen;XU Lei(School of Transportation,Changsha University of Science&Technology,Changsha 410114,China;National Engineering Research Center of Highway Maintenance Technology,Changsha University of Science&Technology,Changsha 410114,China;National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment(Changsha),Changsha University of Science&Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学交通学院,湖南长沙410114 [2]长沙理工大学公路养护技术国家工程研究中心,湖南长沙410114 [3]长沙理工大学极端环境绿色长寿道路工程全国重点实验室(长沙),湖南长沙410114

出　　处：《交通科学与工程》2025年第2期1-10,共10页Journal of Transport Science and Engineering

基　　金：国家自然科学基金资助项目(52378441、51908071);国家重点研发计划资助项目(2023YFB2603500);湖南省自然科学基金资助项目(2024JJ5037);湖南省教育厅科学研究优秀青年项目(24B0322)。

摘　　要：绝大部分的水泥混凝土路面材料为非均质混合料,具有显著的拉压差异性,而我国现行的水泥混凝土路面设计方法仍基于经典线弹性薄板理论,这导致设计结果与实际路面的受力状态存在较大的偏差。综述了国内外现有的双模量本构模型的特点,总结了典型路面材料拉压力学参数的研究现状,分析了现行水泥混凝土路面结构设计方法的不足及双模量理论的应用现状。在双模量本构模型中拉压性质的判别准则仍未达成统一,模型的基本假定及弹性参数之间的关系仍未得到充分的理论及试验验证;水泥类路面材料的弹性参数均具有显著的拉压差异性和随受力状态变化的非线性特点;基于经典线弹性薄板理论进行路面的结构设计导致结构的理论计算结果与实际受力状态偏差较大。应用双模量理论进行水泥混凝土路面结构力学响应分析符合材料的真实力学特性,可有效地解决路面材料弹性模量参数不唯一的问题。研究成果可为考虑材料拉压差异性的水泥混凝土路面结构设计提供参考。Most of the cement concrete pavement materials are non-uniform mixtures,which have significant differences in tension and compression.However,the current design method of cement concrete pavements in China still adopts the classical linear elastic thin plate theory,which leads to a large stress state deviation between the design result and the actual pavement.This paper summarizes the characteristics of existing domestic and international bi-modulus constitutive models,reviews the research progress on the tensile and compressive parameters of typical pavement materials,and analyzes the shortcomings of current methods for structural design of cement concrete pavements and the application status of the bi-modulus theory.The findings show that the criteria for tensile and compressive properties in bi-modulus constitutive models have not been unified,and the relationship between fundamental assumptions of the models and their elastic parameters has not been fully validated through theory and experimentation.The elastic parameters of cement pavement materials exhibit significant differences in tension and compression and nonlinear behavior that varies with the stress state.Currently,pavement structural design still relies on classical linear elastic thin plate theory,which leads to substantial stress state deviations between calculated and actual results.Applying the bi-modulus theory to the structural mechanical response analysis of cement concrete pavements aligns with the actual mechanical behavior of the material and can effectively address non-uniqueness of the elastic modulus of the pavement material.The research findings can provide reference for the structural design of cement concrete pavements with the consideration of different mechanical properties of material in tension and compression.

关 键 词：水泥路面 本构模型 双模量 力学参数 结构设计 综述 

分 类 号：U416.216[交通运输工程—道路与铁道工程]