沪宁高速公路沥青路面结构抗车辙性能环道试验研究  

Experiment Study on the Pavement Structure Rutting Resistance of Huning Expressway with Circular Track Test

作　　者：华斌[1] 佘兆宇[1] 周进川[2] 周刚[2] 

机构地区：[1]江苏沪宁高速公路扩建工程指挥部,江苏南京210049 [2]重庆交通科研设计院,重庆400067

出　　处：《现代交通技术》2006年第5期64-67,共4页Modern Transportation Technology

摘　　要：结合沪宁高速公路扩建工程,对其拟采用的3种沥青路面的结构在50℃～60℃高温下进行了环道车辙试验并测试了沥青路面各结构层的永久变形,分析了水泥稳定碎石半刚性基层、级配碎石柔性基层和各沥青结构层变形对路面车辙的影响。环道试验测定结果表明,对于沥青层厚度超过20 cm的沥青路面结构,其柔性基层或半刚性基层时车辙的影响没有明显差异,永久变形主要发生在20 cm深度范围以内。Combined with Huning expressway extension project,three kinds of asphalt pavement structure used in Huning expressway are studied with circular track test at temperature 50℃-60℃ .In the test,the deformation of all layers of asphalt pavement are measured,and the deformation influence on pavement rutting,which is induced by cement stabilizing crushed stone semi-rigid base, graded crushed stone flexible base and alphalt layer, are analyzed.The result shows that, the influence of flexible or semi-rigid base to the rutting is little as the asphalt layer deeper than 20 cm, and perpetual deformation is occur mostly in surface 20 cm depth.

关 键 词：高速公路 沥青路面 环道试验 永久变形 车辙 

分 类 号：U416.217[交通运输工程—道路与铁道工程]