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Using InSAR stacking techniques to predict bridge collapse due to scour

Selvakumaran, Sivasakthy and Plank, Simon and Rossi, Cristian and Geiß, Christian (2018) Using InSAR stacking techniques to predict bridge collapse due to scour. 2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 22.-27. Jul. 2018, Valencia, Spanien.

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Abstract

Failure of bridges due to scour is of great concern to bridge asset owners, and is currently very difficult to predict and monitor regularly using conventional assessment methods. This paper presents evidence of how InSAR techniques can be used to monitor bridges at risk of scour, using Tadcaster Bridge, England, as a case study. Tadcaster Bridge suffered a partial collapse due to river scour on the evening of December 29th, 2015 following a period of severe rainfall and flooding. SAR scenes over the bridge from the two-year period prior to the collapse are analysed using SBAS interferometry methods, highlighting a distinct movement in the region of the bridge where the collapse occurred prior to the actual event. This precursor to failure observed in the data suggests the possible use of InSAR in structural health monitoring of bridges at risk of scour, as a means of an early warning system.

Item URL in elib:https://elib.dlr.de/121230/
Document Type:Conference or Workshop Item (Poster)
Title:Using InSAR stacking techniques to predict bridge collapse due to scour
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Selvakumaran, SivasakthyUniversity of CambridgeUNSPECIFIED
Plank, Simonsimon.plank (at) dlr.deUNSPECIFIED
Rossi, CristianSatellite Applications Catapult, UKUNSPECIFIED
Geiß, Christianchristian.geiss (at) dlr.deUNSPECIFIED
Date:23 July 2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-4
Status:Published
Keywords:Interferometric synthetic aperture Radar (InSAR), TerraSAR-X, bridge, structural health monitoring (SHM), scour
Event Title:2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Valencia, Spanien
Event Type:international Conference
Event Dates:22.-27. Jul. 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
Deposited By: Plank, Simon Manuel
Deposited On:02 Aug 2018 09:35
Last Modified:19 Feb 2019 09:56

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