不同频率地质雷达天线在道路厚度探测中的应用
Application of Groud Penetrating Radar Antenna of Different Frequencies in Road Thickness Detection
覃琦琦 1杨光 1肖智博 1李文龙2
作者信息
- 1. 湖南文理学院 土木建筑工程学院,湖南 常德 415000
- 2. 湖南博联检测集团有限责任公司,湖南 常德 415000
- 折叠
摘要
利用地质雷达全面精准探测道路工程的结构层厚度情况,阐述了地质雷达检测路基路面结构层厚度的工作原理和探测工作方法,探索利用不同频率地质雷达天线对同一道路断面的路基和路面结构层厚度进行探测.以常德市滨江大道道路工程为例,先通过钻芯取样标定地质雷达波速,然后采用LTD-2600 型地质雷达分别配备1 500 MHz屏蔽天线对沥青混凝土面层和900 MHz屏蔽天线对水泥稳定碎石基层进行探测,最后利用雷达软件对路基路面探测剖面进行分层和质量评定分析,分析结果达到了预期探测目的.
Abstract
In order to use the Ground Penetrating Radar(GPR)to comprehensively and accurately detect the thickness of road engi-neering structure layer,the working principle and detection method of GPR to detect the thickness of subgrade and pavement structure layer was described,and how to detect the thickness of subgrade and pavement structure layer with different frequencies of GPR anten-na in the same road section was explored.Taking Binjiang Road project in Changde City as an example,firstly,the GPR wave velocity is calibrated by drilling core sampling,and then the GPR of LTD-2600 with 1 500 MHz shield antenna is used to detect the asphalt concrete surface and 900 MHz shield antenna is used to detect the cement-stabilized gravel base.Finally,the radar software is used to stratify and evaluate the quality of the subgrade and pavement detection profile,and the analysis results achieve the expected detection purpose.
关键词
地质雷达/路基路面/厚度检测/雷达波速Key words
Ground Penetrating Radar/subgrade pavement/thickness detection/GPR wave velocity引用本文复制引用
基金项目
2023年国家级大学生创新创业训练计划项目(S202310549008)
2023年湖南省大学生创新创业训练计划项目(湘教通[2023]237号)
2023年湖南省大学生创新创业训练计划项目(3252)
出版年
2024
NETL
NSTL
万方数据