摘要
用无损探测技术来获取地下目标物的信息是当前研究的热点,探地雷达作为一种重要的工具及技术,已广泛应用在地埋管道直径的无损探测中,准确快速测定地埋管的直径,在理论研究与实际应用中都具有重要意义.本文在综合分析电磁波在介质中传播的基本特征和目标回波双曲线特征的基础上,讨论了用探地雷达无损探测技术来获取地埋管的直径特征参数的可行性;介绍了国内外目前主流的探地雷达设备,及相关学者在管径探测方面的研究进展;在国内外典型实例剖析的基础上,介绍分析了不同发展时期探地雷达测定地埋管管径的原理及测定方法;接着对地埋管径无损探测研究工作当前存在的问题进行总结.最后指出,地埋管探测的研究工作,应着眼于实现硬件轻便化、软件专业化、数据处理模型的智能化,才能更好的在实践中加以应用.
The development of noninvasive techniques to explore and retrieve information from underground has shown a growing interest among public as well as private entities related to different application fields.As an important instrument and technology,ground penetrating radar（GPR） has been widely used to determine the size of underground pipe buried in reinforced concrete,soil,and other underground materials ether in theoretical research or practical application.Based on the comprehensive analysis of electromagnetic wave propagation in the medium and the hyperbolic characteristics of the reflection of the underground target,this paper discusses the feasibility of detecting diameter parameter of the underground pipe using GPR technology.GPR equipment,which are the current international mainstream products,and the related research progress on diameter detection are introduced;Currently,there are different kinds of methods that are used for diameter detection,this paper also introduces the principle and different testing methods of diameter detection indifferent period on the basis of analysis of the typical examples at home and abroad.Simultaneously,the current problems in the research of non-destructive detection of buried pipe are summarized.Finally,this paper reveals that the detection work of underground pipe should focus on the portable of hardware,professionalism of software and the intelligent of data processing model,in this way this technology could has a better application in practice.
出处
《地球物理学进展》
CSCD
北大核心
2012年第5期2206-2215,共10页
Progress in Geophysics
基金
国家科技支撑计划项目(2008BAB38B03-02)
中央高校基本科研业务费资助
关键词
探地雷达
地埋管
直径
探测方法
GPR
underground pipe
diameter
detection method
