Pavement structures damage caused by Hurricane Katrina flooding / Zhongjie Zhang in Journal of geotechnical and geoenvironmental engineering, Vol. 134 N°5 (Mai 2008)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 134 N°5 (Mai 2008) . - pp. 633–643 Titre : Pavement structures damage caused by Hurricane Katrina flooding Type de document : texte imprimé Auteurs : Zhongjie Zhang, Auteur ; Wu Zhong, Auteur ; Mark Martinez, Auteur Année de publication : 2008 Article en page(s) : pp. 633–643 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Hurricanes Floods Damage Pavements Statistics Louisiana Résumé : In September of 2005, Hurricane Katrina devastated New Orleans and caused sustained flooding. Limited pre- and postflooding tests indicated that the pavement structures tested were adversely impacted by the flood water. Consequently, the Louisiana Dept. of Transportation and Development hired an independent contractor to structurally test approximately 383 km ( [Math Processing Error] ) of the region’s federally aided urban highway system both inside and outside of the flooding area. Falling weight deflectometer (FWD) tests were performed every 161 m ( [Math Processing Error] ) over each selected roadway, along with other field tests. The FWD data were imported into a geographical information system and plotted against a USGS geo-referenced map. Comparative analyses were made possible through the use of extensive flood maps made available through NOAA and FEMA. This arrangement made it possible to classify spatially and graphically all test points on the basis of flooding versus nonflooding, short flooding duration versus longer flooding duration, shallow flooding versus deep flooding, and thin pavements versus thick pavements. Three pavement types, asphaltic concrete, Portland cement concrete, and composite, were considered in this analysis. The statistical inference about the difference in the means of compared data groups was conducted with 95% confidence. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A5%2863 [...] [article] Pavement structures damage caused by Hurricane Katrina flooding [texte imprimé] / Zhongjie Zhang, Auteur ; Wu Zhong, Auteur ; Mark Martinez, Auteur . - 2008 . - pp. 633–643. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 N°5 (Mai 2008) . - pp. 633–643 Mots-clés : Hurricanes Floods Damage Pavements Statistics Louisiana Résumé : In September of 2005, Hurricane Katrina devastated New Orleans and caused sustained flooding. Limited pre- and postflooding tests indicated that the pavement structures tested were adversely impacted by the flood water. Consequently, the Louisiana Dept. of Transportation and Development hired an independent contractor to structurally test approximately 383 km ( [Math Processing Error] ) of the region’s federally aided urban highway system both inside and outside of the flooding area. Falling weight deflectometer (FWD) tests were performed every 161 m ( [Math Processing Error] ) over each selected roadway, along with other field tests. The FWD data were imported into a geographical information system and plotted against a USGS geo-referenced map. Comparative analyses were made possible through the use of extensive flood maps made available through NOAA and FEMA. This arrangement made it possible to classify spatially and graphically all test points on the basis of flooding versus nonflooding, short flooding duration versus longer flooding duration, shallow flooding versus deep flooding, and thin pavements versus thick pavements. Three pavement types, asphaltic concrete, Portland cement concrete, and composite, were considered in this analysis. The statistical inference about the difference in the means of compared data groups was conducted with 95% confidence. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A5%2863 [...]

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