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沥青路面预防性养护效益分析是路面预养护技术的核心,是比选预养护方案和确定实施时机的前提,同时路面预防性养护对维持良好的路面性能也具有重要的意义。预防性养护的成功与否及其效益与进行预防性养护的时机密切相关,本文结合我国公路养护技术水平,从预防性养护的作用出发,针对沥青路面早期损坏的特点,应用寿命周期费用法来确定沥青路面养护的最佳时机,对沥青路面采取稀浆封层技术后,采用预养护效益分析中的效益面积、效益基线、效益面积增量等指标进行计算,最后通过比较效果费用比值得出:当路面寿命为四年时采取预防性养护措施的效果费用比最大,此时也为采取稀浆封层作为预防性养护措施的最佳养护时机,因此应在第四年采用稀浆封层措施对路面进行养护处理。
Asphalt Pavement Preventive Maintenance Benefit Analysis is the core of pavement pre-curing technology. It is a prerequisite for comparing pre-maintenance solutions and determining implementation timing. Preventive maintenance of pavement is also of great significance for maintaining good pavement performance. The success or failure of preventive maintenance and its benefits are closely related to the timing of preventive maintenance. Based on the technical level of road maintenance in our country, starting from the role of preventive maintenance, according to the characteristics of early damage of asphalt pavement, The optimal timing of asphalt pavement maintenance is determined. After the slurry sealing technology is adopted on the asphalt pavement, the benefit area, benefit base line and benefit area increment are calculated by the pre-curing benefit analysis. Finally, by comparing the effect cost ratio : When the pavement life is four years, the cost-effectiveness ratio of preventive maintenance measures is the largest. At this time, it is also the best time to take the slurry seal as the preventive measure for preventive maintenance. Therefore, in the fourth year, Measures to maintain the pavement.