| 探地雷达技术在公路病害探测中的应用 |
| |
| 作者姓名： | 李小平 |
| |
| 作者单位： | 浙江省地球物理地球化学勘查院,杭州,310005 |
| |
| 基金项目： | 浙江省交通厅资助项目
,
浙江省地质勘查局资助项目 |
| |
| 摘 要： | 探地雷达是一种基于介质电磁性质差异的非破坏性测试技术，具有快速、简捷、抗干扰能力强、分辨率高等优点。公路路面、基层、路基和地基等结构层之间存在电磁性质差异，且路基病害造成的结构破坏导致各种介质相互混合，也使得病害区段介质电磁性质与周围明显不同。因此，公路病害的雷达探测具备基本物理前提。以某高速公路裂缝等病害探测为实例，阐述了探地雷达原理和工作方法技术及其在裂缝发展程度、路基不密实区、是否存在空洞等病害特征及其成因探测中的有效性。
|
| 关 键 词： | 公路病害 裂缝 探地雷达 电磁 |
Application of Ground Penetrating Radar Techniques on Test of Highway Hazard |
| |
| Authors: | LI Xiao-ping |
| |
| Institution: | LI Xiao - ping (Zhejiang Institute of Geophysical and Geochemical Exploration, Hangzhou 310005) |
| |
| Abstract: | Ground penetrating radar(GPR)is one non-destructive testing technology based on electro-magnetic character difference of media.It has many advantages,such as fast,simple,strong anti-interference and high resolution.There are electro-magnetic character difference between different structural layers(pavement,foundation course,roadbed,and so on.).In the same time,the electro-magnetic characters are different between the hazard zone and its surroundings,because of the mixture of different media in the destructed structure zone originated from hazard.So it posses basic geophysical precondition to test highway hazard using GPR.Through the geophysical exploration case of fissures and other hazards in one expressway,this paper describes the principle and method of GPR,and its effect on prospecting the character and formation of extent of fissures,loosen roadbed zone,cavity,and so on. |
| |
| Keywords: | highway hazard fissures ground penetrating radar(GPR) electro-magnetic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
