动态荷载下半刚性沥青路面弯沉的影响因素  

Factors Influencing Deflection of Semi-rigid Asphalt Pavement Under Dynamic Load

作　　者：岳学军 王君雄 史纪村 李忠玉 左献宝 张庆 YUE Xue-jun;WANG Jun-xiong;SHI Ji-cun;LI Zhong-yu;ZUO Xian-bao;ZHANG Qing(Henan Gaoyuan Highway Maintenance Technology Co.,Ltd.,Xinxiang 453003,Henan,China;Key Laboratory of Detection and Maintenance Technology of High-grade Highway in Henan Province,Xinxiang 453003,Henan,China;National Engineering Laboratory of Highway Maintenance Equipment,Xinxiang 453003,Henan,China)

机构地区：[1]河南省高远公路养护技术有限公司,河南新乡453003 [2]河南省高等级公路检测与养护技术重点实验室,河南新乡453003 [3]公路养护装备国家工程实验室,河南新乡453003

出　　处：《筑路机械与施工机械化》2020年第1期1-5,共5页Road Machinery & Construction Mechanization

基　　金：国家重点研发计划资助项目(2016YFE0111000);新乡市重大科技专项(ZD19007);河南省杰出外籍科学家工作室资助项目(GZS2018006)。

摘　　要：在ABAQUS中建立移动的周期荷载,模拟真实的车辆荷载,分析连续式弯沉检测中检测速度、轴载大小、检测温度对路表弯沉产生的影响。计算表明:车速由40 km·h^-1增加到120 km·h^-1时,车速对弯沉值的影响显著,弯沉值下降了15.22%,尤其是在低速行驶时更加明显;路表弯沉与轴载大小基本上按照线性比例增加;当温度较低时,路表弯沉随温度较为缓慢变化,接近线性变化;当温度较高时,路表弯沉随温度的变化加快。研究结果初步揭示了检测参数对路表弯沉的影响,为连续式弯沉检测设备的开发应用提供了依据。The moving periodic load was established in ABAQUS to realize the real vehicle load simulation,and the influence of detection speed,axle load and detection temperature on the deflection of road surface in continuous deflection detection was analyzed.The results of calculation show that when the speed increases from 40 km·h^-1 to 120 km·h^-1,the deflection value decreases by 15.22%,and the influence of the speed on the deflection is significant especially when driving at low speed;the deflection of road surface and the axle load increase in accordance with the linear proportion basically;when the temperature is low,the deflection of road surface changes slowly with the temperature in nearly linear manner;when the temperature is high,the deflection changes faster.The research results preliminarily reveal the influence of the test parameters on the deflection of road surface,and provide a basis for the development and application of continuous deflection detection equipment.

关 键 词：道路工程 弯沉 轴载 数值分析 

分 类 号：U416.03[交通运输工程—道路与铁道工程]