Subsidence damage assessment of a Gothic church using differential interferometry and field data

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Títol: Subsidence damage assessment of a Gothic church using differential interferometry and field data
Autors: Tomás, Roberto | Garcia-Barba, Javier | Cano, Miguel | Sanabria, Margarita | Ivorra, Salvador | Duro, Javier | Herrera García, Gerardo
Grups d'investigació o GITE: Ingeniería del Terreno y sus Estructuras (InTerEs) | Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES)
Centre, Departament o Servei: Universidad de Alicante. Departamento de Ingeniería Civil
Paraules clau: Forensic analysis | Differential synthetic aperture radar interferometry | Ground subsidence | Gothic church | Historic building monitoring
Àrees de coneixement: Ingeniería del Terreno | Mecánica de Medios Continuos y Teoría de Estructuras
Data de publicació: 2012
Editor: SAGE Publications
Citació bibliogràfica: Structural Health Monitoring. 2012, 11(6): 751-762. doi:10.1177/1475921712451953
Resum: The Santas Justa and Rufina Gothic church (fourteenth century) has suffered several physical, mechanical, chemical, and biochemical types of pathologies along its history: rock alveolization, efflorescence, biological activity, and capillary ascent of groundwater. However, during the last two decades, a new phenomenon has seriously affected the church: ground subsidence caused by aquifer overexploitation. Subsidence is a process that affects the whole Vega Baja of the Segura River basin and consists of gradual sinking in the ground surface caused by soil consolidation due to a pore pressure decrease. This phenomenon has been studied by differential synthetic aperture radar interferometry techniques, which illustrate settlements up to 100 mm for the 1993–2009 period for the whole Orihuela city. Although no differential synthetic aperture radar interferometry information is available for the church due to the loss of interferometric coherence, the spatial analysis of nearby deformation combined with fieldwork has advanced the current understanding on the mechanisms that affect the Santas Justa and Rufina church. These results show the potential interest and the limitations of using this remote sensing technique as a complementary tool for the forensic analysis of building structures.
Patrocinadors: Roberto Tomás is supported by a Generalitat Valenciana fellowship BEST-2011/225. The European Space Agency (ESA) Terrafirma project has funded all the SAR data processing with the SPN technique. Additionally, this study has been partially financed by the projects: TEC-2008-06764, TEC2011-28201-C02-02 ACOMP/2010/082, VIGROB-157, and 15224/PI/10.
ISSN: 1475-9217 (Print) | 1741-3168 (Online)
DOI: 10.1177/1475921712451953
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: © The Author(s) 2012
Revisió científica: si
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