甘肃陇南沥青路面高温温度场预估模型研究  

Prediction model of high temperature field of asphalt pavement in Longnan area of Gansu province

作　　者：李萍[1] 陈柯柯 念腾飞 刘洋[1] Li Ping;Chen Keke;Nian Tengfei;Liu Yang(School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学土木工程学院

出　　处：《华中科技大学学报（自然科学版）》2018年第11期105-110,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51668041);甘肃省科技支撑重点计划资助项目(1504GKCA031)

摘　　要：为建立甘肃陇南地区沥青路面高温温度场预估模型,选取陇南地区兰海高速典型路段,利用采集的实测沥青路面结构温度数据对陇南沥青路面温度场的分布规律进行研究,并采用回归分析方法分析了气温、太阳辐射强度和湿度等影响因素与路面温度的相关性,建立了以温度、湿度、太阳辐射强度和路面深度为主要参数的沥青路面高温温度场预估模型.研究结果表明：气温和湿度随着时间呈正弦变化,气温和太阳辐射强度对路面结构温度影响呈正相关,湿度对路面结构温度的影响呈负相关;气温和太阳辐射强度对路面结构温度有累积性和滞后性的特点,且随着路面深度的增加;由三种沥青路面温度场预估模型的模拟结果与站点采集的实测值对比分析可知,本研究建立的沥青路面高温温度场预估模型与路面结构温度有较高的相关性,能较好模拟陇南地区沥青路面高温温度场,为陇南地区沥青路面车辙防治工作提供技术支撑.In order to establish a prediction model of high temperature field of asphalt pavement in Longnan area of Gansu Province,a typical section of Lanhai expressway located in Longnan area was chosen to collect the data of pavement structure at high temperature.The temperature data of pavement structure from actual measurements were used to analyze the changing regular of pavement temperature field in this area and the regression analysis method was adopted to analyze how temperature,solar radiation intensity,humidity and road depth would affect the temperature of road surface.The prediction model with temperature,humidity,solar radiation intensity and road depth as parameters was established.Research results show that as time goes on,the regular of temperature and humidity sinusoidal changes,and the influence of temperature and solar radiation intensity on pavement structure temperature is positively correlated.The effect of humidity on pavement structure temperature is negatively correlated.The influence of air temperature and solar radiation intensity on pavement structure temperature is accumulative and hysteresis.Through comparing the measured data collected in sites and the simulating data in three models,the high temperature field prediction model has a high correlation with the pavement structure temperature,which can simulate the high temperature field of Longnan asphalt pavement and provide technical support for the rut prevention and control of asphalt pavement in Longnan area.

关 键 词：道路工程 沥青路面 温度场 预估模型 回归分析方法 

分 类 号：U414.1[交通运输工程—道路与铁道工程]