CAJ | 학술논문

利用有限元程序ABAQUS分析了沥青路面车辙随温度和交通变化的关系,重点分析了这种关系的短期发生过程.分析过程中进行了路面车辙的温度和交通敏感性分析,并进行了针对其短期发生过程的预估模型研究.结果表明:在同样的交通和温度环境下,车辙深度随车辆轮胎压力呈线性增加特性,而在重载作用下则呈非线性特性;影响路面车辙的主要因素有日最高温度、日辐射量、日最低温度、轮胎压力以及荷载作用次数.最后给出了反映温度和交通特性的沥青路面短期车辙预估模型,该模型可以用于车辙的预估和预警.
이용유한원정서ABAQUS분석료력청로면차철수온도화교통변화적관계,중점분석료저충관계적단기발생과정.분석과정중진행료로면차철적온도화교통민감성분석,병진행료침대기단기발생과정적예고모형연구.결과표명:재동양적교통화온도배경하,차철심도수차량륜태압력정선성증가특성,이재중재작용하칙정비선성특성;영향로면차철적주요인소유일최고온도、일복사량、일최저온도、륜태압력이급하재작용차수.최후급출료반영온도화교통특성적력청로면단기차철예고모형,해모형가이용우차철적예고화예경.
The rotting simulation method considering temperature variance and traffic time distribution is developed through ABAQUS software.The short-term behavior of pavement rut under the effects of temperature and traffic loading is addressed.Then sensitivity analysis on the factors of temperature and traffic loading is conducted and a short-term rutting prediction model is developed.The results show that under the same conditions of temperature and the number of load repetitions, rut increases sharply with the contact pressure in a linear manner, while as for the heavy load situation, the increases likely to be more nonlinear and faster; the significant factors affecting rutting include daily maximum air temperature, daily solar radiation volume, daily minimum air temperature, tire-pavement contact pressure and the number of load repetitions.Finally, a short-term rutting prediction model reflecting the effects of air temperature and traffic loading is developed, and it can be used for prediction and pre-warning for pavement rut prevention.