-77-高温多雨区改扩建公路耐久性沥青路面设计钟伟珊（广东粤路勘察设计有限公司，广东广州510000）摘要：为了解决高温多雨区常规公路沥青路面存在的渗水系数较低问题，提高沥青路面的耐久透水性，设计了一种新的透水沥青路面。调整沥青路面混合料级配提高路面材料适配性，计算耐久透水性沥青路面荷载应力结构参数提高路面透水性，布设沥青路面防排水层提高路面耐久性，从而完成高温多雨区改扩建公路耐久性沥青路面设计。试验结果表明，设计的高温多雨区耐久透水性沥青路面的渗水系数较高，路面的耐久透水性较好，证明设计的路面性能良好。关键词：高温多雨；扩建；公路；耐久性；沥青；路面设计中图分类号：U416.217文献标识码：ADesignofdurableasphaltpavementforhighwayreconstructionandexpansioninhightemperatureandrainyareasZHONGWeishan（GuangdongYueluSurveyandDesignCo.,Ltd.,GuangdongGuangzhou510000China）Abstract:Inordertosolvetheproblemoflowseepagecoefficientofconventionalhighwayasphaltpavementinhightemperatureandrainyareasandimprovethedurabilityandpermeabilityofasphaltpavement,anewpermeableasphaltpavementneedstobedesigned.Adjustthegradationofasphaltpavementmixturetoimprovetheadaptabilityofpavementmaterials.Calculatethestructuralparametersofloadstressofdurablepermeableasphaltpavementtoimprovethepermeabilityofpavement.Thewaterproofanddrainagelayerofasphaltpavementislaidtoimprovethedurabilityofpavement,soastocompletethedesignofdurabilityasphaltpavementforhighwayreconstructionandexpansioninhigh-temperatureandrainyareas.Theexperimentalresultsshowthatthedesigneddurablepermeableasphaltpavementinhigh-temperatureandrainyareashasahighpermeabilitycoefficientandagooddurablepermeability,whichprovesthatthedesignedpavementhasgoodperformanceandhascertainapplicationvalue,andcanbeusedasareferenceforthesubsequentpavementinotherwetareas.Keywords:hightemperatureandrainy;extension;highway;durability;asphalt;pavementdesign引言路面结构是交通运输的承载主体［1］，其性能直接影响交通运输的有效性，但受不同区域环境的影响，部分高温多雨区域铺设的路面透水性较差［2］，耐久性不足，经常出现严重的路面损坏问题，极容易引发交通事故，带来不可估量的损失...
