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Development of building vulnerability functions in subsidence regions from empirical methods

Saeidi Ali, Deck Olivier et Verdel Thierry. (2009). Development of building vulnerability functions in subsidence regions from empirical methods. Engineering Structures, 31, (10), p. 2275-2286.

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The extraction of ores and minerals by underground mining often causes ground subsidence phenomena. In urban regions, these phenomena may induce small to severe damage to buildings. To evaluate this damage, several empirical and analytical methods have been developed in different countries. However, these methods are difficult to use and compare due to differences in the number of criteria used (from 1 to 12). Furthermore, the results provided by damage evaluation may be significantly different from one method to another. The present paper develops vulnerability functions based on a concept that has been applied in other areas, such as earthquake engineering, and that appears to be a more efficient way to assess building vulnerability in undermined cities. A methodology is described for calculating vulnerability functions in subsidence zones using empirical methods. The first part of the paper focuses on existing empirical methods for damage evaluation, and selected necessary improvements or modifications are justified. The second part focuses on the development of a building typology in subsidence zones and its application in the Lorraine region, where many villages are subject to subsidence problems due to iron-ore mining. The third section describes and discusses the adopted methodology for determining vulnerability and fragility functions or curves. Finally, vulnerability functions are tested and validated with a set of three subsidences that occurred in Lorraine between 1996 and 1999.

Type de document:Article publié dans une revue avec comité d'évaluation
Pages:p. 2275-2286
Version évaluée par les pairs:Oui
Date:Octobre 2009
Sujets:Sciences naturelles et génie > Génie > Génie civil
Sciences naturelles et génie > Génie > Génie minier et génie géologique
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées > Module d'ingénierie
Mots-clés:vulnerability, mining subsidence, damage, horizontal ground strain, fragility curve, vulnerability curve, vulnérabilité, abaissement des mines, dégâts, contrainte horizontale au sol, courbe de fragilité, courbe de vulnérabilité
Déposé le:30 nov. 2016 14:47
Dernière modification:30 nov. 2016 14:47
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