摘要
针对探地雷达在城市道路检测中存在的具体问题,介绍探地雷达天线中心频率、测线布设、测线定位、测试速率、电磁波传播速度等几个技术要点,最大程度地获取目标体的"第一手"有效资料,重点分析了各因素对测试效果的影响程度。结合工程实例,提出选取合适的天线中心频率,确定在最佳组合参数条件下进行探测的重要,有效指导道路检测,为道路后期治理和施工提供科学依据。
According to the concrete problems of GPR in detecting city roads, the article introduces severa. 1 technical points of GPR such as central frequency of antenna,laying the measuring line, the measuring line location, testing speed, electromagnetic wave velocity and so Ono It is important to access the ＂first hand＂ effective information of the target in degree. The article analyses all kinds of factors influence degree to the detecting effect in particular. Thorough practical project, selecting the suitable central frequency of antenna and the best combined parameter can guide the road detecting effectively. The detecting conclusion provides the scientific evidence to repair the road reasonably.
出处
《岩土工程技术》
2011年第4期180-182,186,共4页
Geotechnical Engineering Technique
基金
北京市科技计划课题项目资助(D101100049510003)
关键词
探地雷达
中心频率
无损检测
测试速率
ground penetrating radar
central frequency
nondestructive detection
testing speed
