基于三维探地雷达的沥青路面厚度研究及验证  

Research and Verification of Asphalt Pavement Thickness Based on 3D Ground Penetrating Radar

作　　者：罗玉秋 何国伟 肖海文 廖俊杰 尹洁 LUO Yuqiu;HE Guowei;XIAO Haiwen;LIAO Junjie;YIN Jie(Meizhou Meijiang Highway Affairs Center,Meizhou Guangdong 514000,China;East China Jiaotong University,Nanchang Jiangxi 330013,China)

机构地区：[1]梅州市梅江公路事务中心,广东梅州514000 [2]华东交通大学,江西南昌330013

出　　处：《交通节能与环保》2024年第6期192-196,202,共6页Transport Energy Conservation & Environmental Protection

摘　　要：在路面质量监测中,沥青路面厚度一直是一个关键参数,它直接影响着路面道路质量、道路寿命和道路行车安全。传统的钻芯取样法虽然被广泛使用,但却存在一个重大缺点,即它会对路面造成不可逆的损害,这可能需要额外的修复工作和费用,而且有限且间断的样本并不能代表整体的质量水平,为解决这一问题,并寻求更高效、准确、连续和大规模的测量方法,本文研究了三种使用三维探地雷达检测沥青路面厚度的检测方法和原理——钻芯取样法、振幅全反射法和共中心点法。通过工程实例去评估三种检测方法在测量沥青路面厚度方面的准确性,最后测得钻芯取样法、振幅全反射法和共中心点法的平均误差分别是22%、138%和25%,共中心点法的测量精确度可以达到钻芯取样法的测量精确度,并且误差测量的变异系数小于振幅全反射法。In pavement quality monitoring,the thickness of asphalt pavement has always been a crucial parameter that directly impacts road quality,road lifespan,and road traffic safety.Although the traditional core drilling sampling method is widely used,it has a significant drawback in that it causes irreversible damage to the pavement,potentially requiring additional repair work and expenses.Moreover,the limited and intermittent samples obtained cannot adequately represent the overall quality level.To address this issue and seek a more efficient,accurate,continuous,and large-scale measurement method,this paper investigates three methods and principles for detecting asphalt pavement thickness using three-dimensional ground penetrating radar:core drilling sampling,amplitude full reflection,and co-centered point methods.Through engineering examples,the accuracy of core drilling sampling,amplitude full reflection,and co-centered point methods in measuring asphalt pavement thickness is assessed.The results indicate that the average errors for core drilling sampling,amplitude full reflection,and co-centered point methods were 22%,138%and 25%,respectively.The co-centered point method achieves a measurement accuracy comparable to that of core drilling sampling and exhibits a lower coefficient of variation in error measurement compared to the amplitude full reflection method.

关 键 词：三维探地雷达 介电常数 沥青路面厚度 无损检测技术 共中心点法 

分 类 号：U418.6[交通运输工程—道路与铁道工程]