Study On Asphalt Pavement Adhesion Coefficient And Traffic Safety Impact Under Different Moisture Condition

In recent years,with the rapid growth of motor vehicle ownership,frequent traffic accidents,road traffic safety issues have attracted wide attention,especially in the event of adverse weather conditions caused by unexpected accidents.Disaster weather is one of the important factors causing traffic accidents,especially after the rain asphalt pavement in the role of water will become slippery,high-speed road vehicles,under the action of water lubrication prone to slip,or even slip Water phenomenon,making the car off the normal direction of the road,more serious when it will occur side slip,rear-end and other accidents.At the same time,the splashing and spraying of the vehicle in front of the vehicle will have an impact on the visibility of the following vehicles and increase the dangers of rainy weather accidents.The safety problems on the road have had a serious impact on the efficiency and safety of vehicle operation.It is necessary to improve the requirements of the road,the road can not be satisfied with the basic requirements of the passage,but also need to have a good road safety.The better the anti-skid performance of the road,the better the traffic on the vehicle will be better,because the traffic accidents caused by the road will be significantly reduced.Therefore,it is necessary to explore the basic principles of accidents under the conditions of the disaster,find the reasons for countermeasures,so as to ensure traffic.In this paper,the research on the anti-skid properties of pavement at home and abroad is summarized,and the factors affecting the friction coefficient of asphalt pavement are analyzed,and the detection methods and testing equipment of pavement anti-sliding performance are analyzed.The pavement texture construction and the anti-skid performance equipment,and introduced the theoretical model of pavement water skiing.Secondly,the slab resistance coefficient of AC-13 C,AK-13 A and SMA-13 were studied by using the pendulum friction coefficient meter under different humidity,temperature and gravel cover.Through a series of correlation tests,the relationship between the friction coefficient of road surface and different influencing factors was found under static condition.Then,according to the similarity principle,the design of the scale model is designed,and the change of the acceleration of the actual vehicle during the running process is studied by the scale model.The influence of the change of the road surface factors on the friction coefficient of the vehicle is reflected,Degree,speed,gravel cover and other conditions in the dynamic conditions and the relationship between the friction coefficient of the road.Finally,the anti-skid mechanism of tire and asphalt road surface interface and the comprehensive analysis of asphalt pavement test are analyzed,and the research on the improvement of asphalt road driving safety under the disaster condition is put forward.