Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Detection of Cavities under Concrete Pavement
An evaluation of an impulse radar system for detecting cavities under concrete pavement is discussed, and field results are presented. It was found that a dual antenna mode of surveying was ideal for void detection. In this mode one antenna operated in a transceive mode and a second, offset from the first, operated in a receive-only mode. This arrangement allowed a refraction-type profile survey to be performed, which enabled subpavement voids to be easily detected. Field trails were held at Plattsburgh Air Force Base, where 28 cavities were detected and mapped. Drilling of holes verified that a cavity existed and allowed cavity depth to be measured. The cavities varied from 1.5 in. to 23 in, depth and were up to 20 ft. long. (Author)
Detection of Cavities under Concrete Pavement
An evaluation of an impulse radar system for detecting cavities under concrete pavement is discussed, and field results are presented. It was found that a dual antenna mode of surveying was ideal for void detection. In this mode one antenna operated in a transceive mode and a second, offset from the first, operated in a receive-only mode. This arrangement allowed a refraction-type profile survey to be performed, which enabled subpavement voids to be easily detected. Field trails were held at Plattsburgh Air Force Base, where 28 cavities were detected and mapped. Drilling of holes verified that a cavity existed and allowed cavity depth to be measured. The cavities varied from 1.5 in. to 23 in, depth and were up to 20 ft. long. (Author)
Detection of Cavities under Concrete Pavement
A. Kovacs (Autor:in) / R. M. Morey (Autor:in)
1983
50 pages
Report
Keine Angabe
Englisch
Civil Engineering , Radar scanning , Cavities , Pavements , Detection , Subsurface , Foundations(Structures) , Voids , Radar pulses , Transmitter receivers , Refraction , Radar antennas , Profiles , Holes(Openings) , Radar signatures , Mapping , Air force facilities , Aprons , Runways , Cavity detection
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