层间接触状态对刚柔组合路面结构性能影响研究  

Study on the Influence of Interlayer Contact State on the Structural Performance of Rigid Flexibility Combined Pavement

作　　者：林群 李婷玉 陈宇亮 LIN Qun;LI Tingyu;CHEN Yuliang(Zhonghe Huaxing Construction Co.,Ltd.,Putian,Fujian 351100,China;Hunan Communications Research Institute Co.,Ltd.,Changsha,Hunan 410015,China)

机构地区：[1]中核华辰建筑工程有限公司,福建莆田351100 [2]湖南省交通科学研究院有限公司,湖南长沙410015

出　　处：《公路工程》2020年第6期181-184,206,共5页Highway Engineering

基　　金：湖南省交通科学研究院有限公司研发项目(KY-19-04);湖南省交通运输厅科技项目(201111)。

摘　　要：为全面探究层间接触状态对刚柔结合路面层间剪切强度的影响规律。通过室内剪切强度试验和拉拔强度试验,分析了不同界面处理方式、不同黏结材料及其用量以及不同工作条件3个方面对刚柔组合路面结构性能的影响规律。研究结果表明,构造深度和黏结材料的类型对层间性能影响较大。构造深度越大,层间抗剪切性能越好;黏结性能较好的SBS黏结材料在用量为2.0 kg/m 2时,层间抗剪切强度最大。层间抗剪切强度与环境温度呈线性负相关。因此,为使刚柔组合路面保持较好的路面结构性能,在选择有利的界面结构的同时,考虑在夏季高温时严格控制路面荷载。This paper explored the influence of interlayer contact state on the shear strength of rigid flexibility combined pavement.Through the shear strength test and pullout test,the influence of different interface roughness,different binders and its contents,and different working conditions on the structural performance of rigid flexibility combined pavement was analyzed.It was found that the structural depth and the type of binder had a great influence on the interlaminar performance.The results showed that the greater the structural depth,the better the bonding performance.And the interlaminar shear strength reached best when SBS binder was used with a content of 2.0 kg/m 2.The interlaminar shear strength had a linear negative correlation with the ambient temperature.Therefore,in order to keep better performance of rigid flexibility combined pavement,the rough interface structure should be selected and the load should be strictly controlled at high temperature in summer.

关 键 词：刚柔结合路面 界面处置 剪切强度 

分 类 号：U416.2[交通运输工程—道路与铁道工程]