水泥混凝土路面振动整平特性试验研究  

Experimental research on vibration leveling characteristics of cement concrete

作　　者：曹源文[1] 王杰 姚国宁 张璞 许芳铭 CAO Yuanwen;WANG Jie;YAO Guoning;ZHANG Pu;XU Fangming(School of Mechanical and Electrical Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Zhengzhou Road and Bridge Construction Investment Group Co.,Ltd.,Zhengzhou 450006,Henan,China)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074 [2]郑州路桥建设投资集团有限公司,河南郑州450006

出　　处：《中国工程机械学报》2023年第5期465-470,共6页Chinese Journal of Construction Machinery

基　　金：河南省交通厅项目(Hnxrc2018001);云南省交通运输厅科技项目(2017(A)15)。

摘　　要：为研究整平机与水泥混凝土路面相互作用时的振动整平特性,以整平机运动参数、路面材料及结构参数为变量,利用Matlab进行仿真,得到各因素与路面平整度的关系,并通过振动整平试验,验证仿真结果的准确性。对比发现,试验与仿真数据一致性较高。结果表明:国际平整度指数(IRI)随行驶速度的降低呈减小趋势,最优作业速度小于60 m/min;随振动板频率的增大呈减小趋势,最优振动频率为40~50 Hz;水泥混凝土路面层厚度为10~15 cm时,减小混凝土稠度可显著提高路面平整度;当路面层厚度为25 cm以上时,材料参数的改变对路面平整度的影响较小。In order to study the vibration leveling characteristics when the leveling machine interacts with the cement concrete pavement,the relationship between the influence of each factor and the pavement flatness is obtained by Matlab simulation with the movement parameters of the leveling machine,pavement materials and structural parameters as variables,and the accuracy of the simulation results is verified by the vibration leveling test.By comparison,it is found that the test and simulation data are highly consistent and reliable.The test results show that international roughness index(IRI)decreases with the decrease of driving speed,and the optimal operating speed is below 60 m/min;The optimum vibration frequency is 40~50 Hz;When the thickness of cement concrete pavement layer is about 10~15 cm,reducing the concrete consistency can significantly improve the pavement flatness;When the pavement thickness is more than 25 cm,the change of material parameters has little effect on the pavement evenness.

关 键 词：水泥混凝土路面 振动整平特性 国际平整度指数(IRI) 运动参数 材料特性 路面结构 

分 类 号：TU623.6[建筑科学—建筑技术科学]