基于芯样车辙试验的沥青混合料蠕变参数  

Creep Parameters of Asphalt Mixture Based on Core Rutting Test

作　　者：张争奇[1] 芮照诚 赵勤胜 李乃强 李宏伟 ZHANG Zhengqi;RUI Zhaocheng;ZHAO Qinsheng;LI Naiqiang;LI Hongwei(Key Laboratory of Highway Engineering in Special Region of Ministry of Education,Chang’an University,Xi’an 710064,China;Shandong Transportation Research Institute,Ji’nan 250102,China;Shandong Provincial Communications Planning Design Institute Group Co.,Ltd.,Ji’nan 250101,China;Tangshan Expressway Group Co.,Ltd.,Tangshan 063000,China)

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 [2]山东省交通科学研究院,山东济南250102 [3]山东省交通规划设计院集团有限公司,山东济南250101 [4]唐山高速公路集团有限公司,河北唐山063000

出　　处：《材料科学与工程学报》2023年第6期890-896,共7页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51008031)。

摘　　要：本研究借助时间硬化蠕变模型对沥青混合料单轴静载蠕变试验结果、车辙试验结果和路面芯样车辙试验结果进行拟合,得到了不同试验条件下的材料蠕变参数并对其进行相关性分析。结果表明,基于芯样车辙试验结果修正得到的蠕变参数可以较好地反映沥青路面实际性能,且与室内单轴静载蠕变试验结果拟合的蠕变参数具有良好地相关性。该蠕变参数用于有限元法沥青路面车辙预估,其结果更为准确。With the aid of tine hardening creep model,the uniaxial static load creep test results,rutting test results and pavement core rutting test results of asphalt mixture were fitted.The material creep parameters under different test conditions were obtained and analyzed.The results show that the creep parameters corrected by the results of core rutting test can well reflect the actual performance of asphalt pavement,and they are commendably related with the creep parameters fitted by the results of indoor uniaxial static load creep tests.Moreover,using the creep parameter for rutting prediction of asphalt pavement by finite element method can obtain good accuracy.

关 键 词：沥青路面 蠕变参数 时间硬化蠕变模型 车辙试验 换算公式 

分 类 号：U414[交通运输工程—道路与铁道工程]