Research Of Timing And Strategy Of Asphalt Pavement Preventive Maintenance Based On Exponential Smoothing Method

Recent years, with the increasing of the traffic mileage and service life, the road work in our country is changing from the stage of fast construction to maintenance management. Asphalt pavement is the main pavement structure form in our country. But the early damage of asphalt pavement has become a burden of the maintenance job. After late 1990s, concept and technology of preventive maintenance has gradually imported to our country. Preventive maintenance (PM) is of great significance to prolong service life of the asphalt pavement and save life cycle cost.Asphalt pavement preventive maintenance of timing and strategy in the city Qinhuangdao Hebei province is studied in this paper. First, the pavement performance of these roads were investigated and analyzed. Summarized the method of pavement preventive maintenance. Second, the method and the occasion of preventive maintenance are summarized. At last, established the assess system of the pavement preventive maintenance. This paper selected the jing-qin highway to analysis preventive maintenance decision. And use the flatness method in pavement service performance. So the result is more truthfulness. This paper doesn't only provide reasonable advice and technical guidance of maintenance job to medium and low traffic flow roads in the city Qinhuangdao Hebei province, but also provide reference to asphalt pavement preventive maintenance of timing and strategy in our country.