Current situations,advantages/disadvantages and future developments of resilient deformation characterizations of unbound granular material:A state-of-the-art review

作     者：Shaohui Li Peiwen Hao Shaohui Li;Peiwen Hao

作者机构：Key Laboratory of Road Structure and MaterialSchool of HighwayChang'an UniversityXi'an 710064China Key Laboratory of Road and Traffic Engineering of Ministry of EducationTongji UniversityShanghai 201804China 

出 版 物：《Journal of Traffic and Transportation Engineering(English Edition)》 (交通运输工程学报（英文版）)

年 卷 期：2023年第10卷第6期

页      面：964-1000页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0701[理学-数学] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financed by Natural Science Foundation of Shaanxi Province,China (Grant Nos.2021JQ-280,2021JQ-293) Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University (Grant No.K202102) National Natural Science Foundation of China (Grant No.51908057) Fundamental Research Funds for the Central Universities (Grant No.300102212211) 

主　　题：Unbound granular material Resilient characterization Testing method Influencing factor Constitutive model 

摘      要：A state-of-the-art review was delivered in the manuscript to analyze the current situations and the advantages/disadvantages of resilient deformation related issues to the unbound granular material(UGM),including testing methods,influencing factors and constitutive models,through which the bottlenecks in UGM resilient deformation characterizations were located and new theories and future research recommendations were *** with other testing methods,the hollow cylinder test and true triaxial test are the only two to determine the anisotropic moduli of the *** significant advantages are observed in more advanced test apparatus such as true triaxial test,further improvements should be made,such as more advanced process identification control algorithm,to more conveniently control the nine independent hydraulic system and accurately measure UGM anisotropic *** and conflicts in understanding the influencing factors to UGM resilient modulus were located,such as the stress history,the residual stress,the dry density,the gradation/fine content and the freeze-thaw cycle,based on which future research could be *** reviewing evolutions of the UGM constitutive models and comparing their representativeness and complexity comprehensively,major drawbacks were discovered and a new theory was proposed afterward to modify the UGM constitutive model,although further validations are still needed.