New Orleans Levee System Performance during Hurricane Katrina: 17th Street Canal and Orleans Canal NorthSource: Journal of Geotechnical and Geoenvironmental Engineering:;2008:;Volume ( 134 ):;issue: 005Author:Inthuorn Sasanakul
,
Wipawi Vanadit-Ellis
,
Michael Sharp
,
Tarek Abdoun
,
Javier Ubilla
,
Scott Steedman
,
Kevin Stone
DOI: 10.1061/(ASCE)1090-0241(2008)134:5(657)Publisher: American Society of Civil Engineers
Abstract: Centrifuge modeling of the 17th Street Canal and Orleans Canal North levees was performed in this study. During hurricane Katrina the levees on the 17th Street Canal failed, leading to breaches in the outfall canal in the city. Two mechanisms were observed in the centrifuge modeling that could cause a breach. First, a water-filled crack formed in front of the floodwall as the water in the canal rose above the top of the levee. The levees on the 17th Street Canal, which were supported on clay foundations, failed when this cracking led to a translational (sliding) failure in the clay layer commencing at the toe of the floodwall. The levees at Orleans Canal North, where failure did not occur, were also modeled to demonstrate that the model tests could successfully simulate failure and nonfailure conditions. The centrifuge model tests identified the importance of the crack formation in relation to the stability of the floodwall. These tests also confirmed that levee geometry, floodwall depth of penetration, and the underlying soil profile were all critical to the performance of the system under flood loading.
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contributor author | Inthuorn Sasanakul | |
contributor author | Wipawi Vanadit-Ellis | |
contributor author | Michael Sharp | |
contributor author | Tarek Abdoun | |
contributor author | Javier Ubilla | |
contributor author | Scott Steedman | |
contributor author | Kevin Stone | |
date accessioned | 2017-05-08T21:29:13Z | |
date available | 2017-05-08T21:29:13Z | |
date copyright | May 2008 | |
date issued | 2008 | |
identifier other | %28asce%291090-0241%282008%29134%3A5%28657%29.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/53341 | |
description abstract | Centrifuge modeling of the 17th Street Canal and Orleans Canal North levees was performed in this study. During hurricane Katrina the levees on the 17th Street Canal failed, leading to breaches in the outfall canal in the city. Two mechanisms were observed in the centrifuge modeling that could cause a breach. First, a water-filled crack formed in front of the floodwall as the water in the canal rose above the top of the levee. The levees on the 17th Street Canal, which were supported on clay foundations, failed when this cracking led to a translational (sliding) failure in the clay layer commencing at the toe of the floodwall. The levees at Orleans Canal North, where failure did not occur, were also modeled to demonstrate that the model tests could successfully simulate failure and nonfailure conditions. The centrifuge model tests identified the importance of the crack formation in relation to the stability of the floodwall. These tests also confirmed that levee geometry, floodwall depth of penetration, and the underlying soil profile were all critical to the performance of the system under flood loading. | |
publisher | American Society of Civil Engineers | |
title | New Orleans Levee System Performance during Hurricane Katrina: 17th Street Canal and Orleans Canal North | |
type | Journal Paper | |
journal volume | 134 | |
journal issue | 5 | |
journal title | Journal of Geotechnical and Geoenvironmental Engineering | |
identifier doi | 10.1061/(ASCE)1090-0241(2008)134:5(657) | |
tree | Journal of Geotechnical and Geoenvironmental Engineering:;2008:;Volume ( 134 ):;issue: 005 | |
contenttype | Fulltext |