沥青路面最佳预防性养护时机决策模型  

Model to decide optimal timing of asphalt pavement preventive maintenance

作　　者：王笑风[1,2] 

机构地区：[1]长安大学道路施工技术与装备教育部重点实验室,陕西西安710064 [2]河南省交通规划勘察设计院有限责任公司,河南郑州450052

出　　处：《长安大学学报（自然科学版）》2011年第3期7-12,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：河南省交通科技重点项目(2009D102)

摘　　要：为了确定沥青路面预防性养护的最佳养护时机,结合预防性养护措施的特点,分析养护措施实施前后路面性能的衰变特性,定义预防性养护综合效益,确定评价指标的权重,制定合理分析周期,同时采用费用分析法建立了最佳养护时机决策模型。算例计算结果表明:通过对路面评价指标加权计算综合效益,能够突出各项评价指标的作用,客观反映养护对象的特点;根据决策模型建立的4个决策指标(综合效益值、等额年费用值、效益指数和路面服务寿命变化量),可以形成5个决策原则(费用最小原则、最大综合效益原则、最大单位费用效益原则、最长服务年限原则和综合平衡原则),能够同时满足不同决策者的需求,而决策精度取则决于反映路面性能变化数据的完善程度。In order to decide the optimal timing of the aspalt pavement preventive maintenance, a decision model was developed. Through analyzing the change of pavement performance after the maintenance treatment application, the model defined the pavement composite benefit, decided the analysis period and set up the four decision making indexes. An application example shows that the model can reflect the roles of various pavement performance indexes, objectively describe the characteristics of maintenance object; based on the four decision indexes（the composite benefit value, the equal annual cost, the benefit index, and the expected extension of life） ,the five decision principles can be formed,they are the minimum cost principle, the maximum composite benefit principle, the maximum unit cost benefit principle, the longest service term principle and the comprehensive balance principle; these principles may meet the needs of different decision mak ers, and the decision precision lies on the data of pavement performance. 9 tabs, 6 figs, 6 refs.

关 键 词：道路工程 沥青路面 预防性养护 最佳养护时机 决策模型 

分 类 号：U416.217[交通运输工程—道路与铁道工程]