宽幅路面渗流规律分析及排水混合料性能研究  

Analysis of seepage law of wide pavement and study of performance of drainage mixture

作　　者：张慧 郭赵元 ZHANG Hui;GUO Zhaoyuan(Jiangsu Communications Engineering Construction Bureau,Nanjing 210000,China)

机构地区：[1]江苏省交通工程建设局,江苏南京210000

出　　处：《四川建材》2024年第5期130-132,共3页Sichuan Building Materials

基　　金：江苏省交通工程建设局重点科研项目:薄层排水路面路用性能提升关键技术研究(YJ2263025)。

摘　　要：为了研究宽幅路面渗流规律及排水混合料性能,依托沪陕高速公路(平潮至广陵段)扩建工程,开展了宽幅路面排水需求分析及排水混合料性能研究。结果表明,空隙率在20%以上,对于一般路段,4 cm排水路面即可满足降雨重现期0.5~10年的排水需求,超高过渡段4 cm排水路面可满足降雨重现期0.5~5年的排水需求,7 cm和10 cm的双层排水结构排水路面可满足降雨重现期10年的排水需求,不粘轮乳化沥青的粘结效果较SBS改性乳化沥青粘结效果提升了20%左右,洒布量在0.2 kg/m^(2)时层间粘结效果及排水性能最佳。In order to study the seepage law of wide pavement and the performance of drainage mixture,the analysis of the drainage demand of wide pavement and the performance of drainage mix-ture were carried out based on the expansion project of Shanghai-Shaanxi Expressway(Pingchao to Guangling section).The re-sults show that the void ratio is more than 20%,for the general road section,the 4cm drainage pavement can meet the drainage demand between 0.5~10 years of rainfall return period,the 4cm drainage pavement of the ultra-high transition section can meet the drainage demand between 0.5~5 years of rainfall return pe-riod,the 7 cm and 10 cm double-layer drainage structure drain-age pavement can meet the drainage demand of 10 years of rain-fall return period,and the bonding effect of non-stick wheel emul-sified asphalt is about 20%higher than that of SBS modified e-mulsified asphalt.When the spreading amount is 0.2 kg/m^(2),the interlayer bonding effect and drainage performance are the best.

关 键 词：排水路面 渗流规律 层间粘结 

分 类 号：U416.217[交通运输工程—道路与铁道工程]