摘要
探地雷达凭借其高效、连续、无破损等优点,已广泛应用于水利、道路、市政等工程质量评估与隐患探测中。通过对探地雷达回波信号进行反演分析,可以得到结构内部情况。本文基于一种适用于连续优化问题的改进蚁群算法,建立了道路、堤坝、隧道等层状结构体系介电特性反演算法,实现了结构层介电参数和厚度的智能优化识别。理论模型验算结果表明,该方法可准确收敛至理论值,误差满足要求。利用该方法分析实际路面雷达回波信号,反算路面结构层厚度,并与钻芯取样结果进行对比,结果显示,反算结果误差在4%以内。
Ground Penetrating Radar(GPR)has been widely used in road,water conservancy,municipal engineering quality assessment and hidden danger detection project with its advantages of continuous,high efficiency and no damage.By analyzing the echo signal of GPR,the internal distribution of the structure can be obtained.The inversion algorithm of dielectric properties in roads,dams was developed based on an improved ant colony algorithm,and the dielectric constant and layer thickness of the structure could be obtained intelligently.The experimental results show that the error meets the accuracy requirement.Finally,the pavement thickness is back-calculating by analyzing actual pavement GPR echo signal,and compared with the results of core.The results show that the calculated results and the actual core value measurement error within 4%.
作者
丁鑫
郭乙霏
方宏远
刘小梅
张小旺
DING Xin;GUO Yifei;FANG Hongyuan;LIU Xiaomei;ZHANG Xiaowang(Airport Management Office of Henan Toll Expressway Management Center,Zhengzhou 450019,China;School of Water Conservancy & Civil Engineering,Northeast Agricultural University,Harbin 150030,China;College of Water Conservancy & Environmental Engineering,Zhengzhou University,Zhengzhou 450001,China;National Local Joint Engineering Laboratory of Major Infrastructure Testing and Rehabilitation Technology,Zhengzhou 450001,China;Xuchang Vocational Technical College,Xuchang 461000,China;Henan Transportation Research Institute Co.,Ltd.,Zhengzhou 450006,China)
出处
《人民黄河》
CAS
北大核心
2019年第6期107-110,115,共5页
Yellow River
基金
国家重点研发计划项目(2017YFC1501204)
国家自然科学基金资助项目(51678536,41404096)
2018年度河南省交通运输科技计划项目(2018J7)
关键词
层状结构
介电特性
蚁群算法
反演分析
结构层厚度
layered structure
dielectric properties
ant colony algorithm
inversion analysis
thickness of the pavement
