新疆路面沥青混合料疲劳寿命预估分析  

Fatigue Life Prediction of Asphalt Pavement in Xinjiang

作　　者：朱厚江 杨三强[1,2] 张冲[1] 陈芳[3] 李岩岩[1] ZHU Houjiang YANG Sanqiang ZHANG Chong CHEN Fang LI Yanyan(School of Mechanics and Transportation, Xinjiang Agriculture University, Urumchi, Xinjiang 830052, China School of Architecture and Civil, Hebei University, Baoding, Hebei 071000, China Xinjiang Communnications Construction Group Co. LTD,Urumchi,Xinjiang 830052, China)

机构地区：[1]新疆农业大学机械交通学院,新疆乌鲁木齐830052 [2]河北大学建筑工程学院,河北保定071000 [3]新疆交通建设集团股份有限公司,新疆乌鲁木齐830052

出　　处：《公路工程》2017年第1期115-118,共4页Highway Engineering

基　　金：新疆维吾尔自治区自然科学基金项目资助(2013211B43)

摘　　要：通过分析新疆典型沥青面层结构设计,采用BISAR3.0软件仿真模拟试验手段,确定不同沥青面层厚度的室内沥青混合料疲劳破坏加载方式。用预估模型对沥青混合料进行疲劳寿命分析。研究表明:沥青混合料疲劳破坏加载方式选择与沥青面层厚度有关,当面层厚度不大于5 cm和大于16 cm时,沥青混合料疲劳试验加载方式分别采用应力控制模式与应变控制模式;预估模型疲劳寿命与实测值存在一定差异但满足精度要求可为新疆沥青混合料疲劳设计提供借鉴作用。By analyzing the typical structural design of asphalt surface in Xinjiang, BISAR3.0software simulation test method is adopted to determine the indoor asphalt mixture fatigue failure loading method of different thickness of asphalt surface. The forecast model is used to analyze the fatigue life of asphalt mixture. Studies have shown that how to select the fatigue failure loading method of asphalt mix- ture is connected with the thickness of asphalt surface, when the surface layer is either not more than 5cm or more than 16cra,accordingly,stress control mode and strain control mode should be applied to asphalt mixture fatigue failure loading method. There are some differences between fatigue life of forecast model and the measured values, but the former meet the demand of accuracy, it can also provide some reference for the fatigue design of asphalt mixture in Xinjiang.

关 键 词：沥青混合料 疲劳寿命 仿真模拟 预估模型 

分 类 号：U414.1[交通运输工程—道路与铁道工程]