Paper Info
Title
A Study Of The Application And The Limitations Of Gpr Investigation On Underground Survey Of The Korean Expressways
Abstract
In this study, the applications and the limitations of the Ground-penetrating radar (GPR) investigation have been addressed with the main objective of improving the efficient GPR application of subsurface surveys on Korean expressways. The depth of investigation and detection performance of anomalous objects have been studied using two different types of multichannel GPR on the Korean Expressway Corporation's nondestructive testing testbed for subsurface detection. Based on the field survey, it was found that utilizing the plane view by depth, cross-sectional and longitudinal profile data of the multichannel GPR simultaneously, analysis and evaluation of the GPR signals are more efficient and practical. Although there was a difference in the frequency of use, the precision difference between two GPR is almost similar in the investigation depth and detection performance of the pavement subsurface anomaly. Under an asphalt concrete standard pavement section, the effective depth of cavity detection is 1-1.5 m, while detection under concrete pavement is less than 1.0 m. In addition, there is still a need to calibrate depths using field cores when constructing a 3D underground facility map.
Year
DOI
Venue
2021
10.3390/rs13091805
REMOTE SENSING
Keywords
DocType
Volume
multichannel GPR, depth of investigation, detection performance, pavement, depth analysis
Journal
13
Issue
Citations 
PageRank 
9
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Ji-Young Rhee100.34
Keon-Tae Park200.34
Jin-Woo Cho300.34
Sang-Yum Lee400.34