Radar testing of masonry arch bridges with soil backfill

被引：0
|
作者：
Colla, C [1 ]
McCann, DM [1 ]
Forde, MC [1 ]
机构：
[1] Univ Edinburgh, Dept Civil & Environm Engn, Edinburgh EH8 9YL, Midlothian, Scotland
来源：
ARCH BRIDGES: HISTORY, ANALYSIS, ASSESSMENT, MAINTENANCE AND REPAIR | 1998年
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper focuses on the use of single and 2-channel digital radar systems to investigate masonry arch bridges with soil backfill using antennae in monostatic, bistatic and transmission mode, also for tomographic inversion. From a laboratory study it has been demonstrated that even small concentrations of sodium chloride salt can cause substantial attenuation of the signal. Thus routine de-icing using salt can cause significant problems for the use of radar for the investigation of masonry arch bridges. In addition, bridges having a higher moisture content will also be subject to substantial signal attenuation. Fields studies are given on two bridges in Scotland to illustrate the applicability of the various radar techniques using a multi channel digital radar system.
引用
收藏
页码：253 / 261
页数：9
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