摘要
文章首先简要叙述探地雷达的工作方法和技术特点,介绍了探地雷达图像的分析处理过程(编辑标记、地形高程改正、距离修正、去除干扰信号和进行数字信号处理等),重点研究了道路路基存在较大空洞和不规则孔洞、地层软弱区、地层松散区、雨水或者地下水入侵路基层、路基产生沉陷、断层或裂缝等主要病害的探地雷达图像特征。文章还列举了两个应用工程实例,并论述了探地雷达在道路路基病害探测中应用的可行性和优越性。
Exploring methods and technical characters of Ground Penetrating Radar （GPR） are simply narrated. Process of image analysis and manip- ulation, including editing marks, revising terrain, modifying distances, eliminating interferential signals and dealing with digital signals are then intro- duced. It is emphasized that Geo - radar images of disease roadbeds with bigger or irregular cavity, weak or loose stratum, invaded by rain and groundwater, and affected by sink, fault or slit, are discussed. Two application project examples are illustrated to show availability and superiority of GPR in the detection of roadbed diseases.
出处
《地质与勘探》
CAS
CSCD
北大核心
2007年第5期92-95,共4页
Geology and Exploration
关键词
探地雷达
路基质量
病害图像
探测
ground penetrating radar, quality of roadbed, disease geo- radar image, detection
