DSC modelling for predicting resilient modulus of crushed rock base as a road base material for Western Australia roads

作     者：KHOBKLANG Pakdee VIMONSATIT Vanissorn JITSANGIAM Peerapong NIKRAZ Hamid 

作者机构：Department of Civil EngineeringCurtin UniversityGPO Box U1987 Perth 6845Western AustraliaAustralia 

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

年 卷 期：2013年第13卷第2期

页      面：10-16页

核心收录：

学科分类：08[工学] 0813[工学-建筑学] 0802[工学-机械工程] 0814[工学-土木工程] 0823[工学-交通运输工程] 

基　　金：Curtin International Postgraduate Research Scholarship(CIPRS) Human Resource Development Scholarship of Kasetsart University 

主　　题：pavement engineering CRB resilient modulus DSC RI triaxial test 

摘      要：In order to increase the applied efficiency of crushed rock base(CRB) in pavement structure design for Western Australia roads,the material modelling based on the experimental results was investigated,and the disturbed state concept(DSC) was used to predict the resilient modulus of CRB because of its simplicity and strong ability in capturing the elastic and inelastic responses of materials to loads.The actual deformation of DSC,at any loading state,was determined from its assumed relative intact(RI) state.The DSC equation of CRB was constructed by using a set of experimental results of resilient modulus tests,and an idealized material model,namely the linear elastic model,of relative intact(RI) part was considered.Analysis results reveal that the resilient modulus-applied stress relationships back-predicted by using the DSC modelling are consistent with the experimental results,so,the DSC equation is suited for predicting the resilient modulus of CRB specimen.However,the model and the equation coming from the test results are conducted in accordance with the Austroads standard,so further investigation and validation with respect to the field behaviours of pavement structure should be performed.