Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/88950
Título: | A non-invasive and multi-scale approach to detect subsidence in pavements: InSAR, FWD and GPR |
Autor(es): | Alonso-Diaz, Alex Solla, Mercedes Fontul, Simona Marecos, Vânia Antunes, Maria de Lurdes Pais, Jorge C. |
Palavras-chave: | Flexible pavements FWD GPR InSAR PSI Subsidence |
Data: | 1-Jan-2023 |
Resumo(s): | This paper presents a non-invasive and multi-scale approach to detect subsidence in a national road through the combination of complementary techniques, InSAR (Interferometric Synthetic Aperture Radar), FWD (Falling Weight Deflectometer) and GPR (Ground-Penetrating Radar). For the InSAR, the PSI (Persistent Scatter Interferometry) method was selected using Sentinel-1 images. The FWD measurements were collected with 100 m spacing. The GPR survey was conducted with air-coupled antennas of 1.0 and 1.8 GHz central frequencies. The approach herein presented has demonstrated to be an efficient tool to detect subsidence: at network level, the InSAR allowed to detect differential settlements in transition zones and subsidence due to soil consolidation in high embankments; whereas, at project level, the GPR enabled to detect changes in the pavement structure, while the FWD measurements were used to differentiate weaker/stiffer pavement sections. This approach opens new possibilities for diagnostic procedures to optimize the measurement location of costly and time-consuming GPR and FWD tests. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/88950 |
ISBN: | 9798350337884 |
DOI: | 10.1109/IWAGPR57138.2023.10329133 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito autor |
Aparece nas coleções: | ISISE - Comunicações a Conferências Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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A_Non-Invasive_and_Multi-Scale_Approach_to_Detect_Subsidence_in_Pavements_InSAR_FWD_and_GPR.pdf Acesso restrito! | 3,83 MB | Adobe PDF | Ver/Abrir |