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首页> 外文期刊>Water Policy >Interaction between the US Army Corps of Engineers and the Orleans Levee Board preceding the drainage canal wall failures and catastrophic flooding of New Orleans in 2005
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Interaction between the US Army Corps of Engineers and the Orleans Levee Board preceding the drainage canal wall failures and catastrophic flooding of New Orleans in 2005

机译：在2005年新奥尔良的排水渠管壁破裂和灾难性洪水之前，美国陆军工程兵与奥尔良堤防局之间的互动

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The authors hope to correct any premature conclusions about the role of the pre-Katrina Orleans Levee Board (OLB) in the failure of the outfall drainage canals in New Orleans during the 2005 hurricane - conclusions that appear to have been based on inaccurate information and/or assumptions. With regard to the 17th Street and London Avenue Canals, the authors have not uncovered any information that would suggest that the OLB behaved irresponsibly in its duties. What is evident from the project record is that the Army Corps of Engineers recommended raising the canal floodwalls for the 17th Street Canal, but recommended gated structures at the mouths of the Orleans and London Avenue Canals because the latter plan was less expensive. The OLB convinced Congress to pass legislation that required the Corps to raise the floodwalls for all three canals. Furthermore, the Corps, in a separate attempt to limit project costs, initiated a sheet pile load test (E-99 Study), but misinterpreted the results and wrongly concluded that sheet piles needed to be driven to depths of only 17 feet (1 foot = 0.3048 meters) instead of between 31 and 46 feet. That decision saved approximately US$100 million, but significantly reduced overall engineering reliability.
机译：作者希望纠正关于卡特里娜飓风前奥尔良堤防委员会（OLB）在2005年飓风期间新奥尔良排污渠故障中的作用的任何过早结论-这些结论似乎是基于不准确的信息和/或假设。关于第十七街和伦敦大街运河，作者尚未发现任何暗示OLB在其职责中表现不负责任的信息。从项目记录中可以明显看出，陆军工程兵团建议为第17街运河增加运河防洪墙，但建议在奥尔良和伦敦大道运河的河口安装闸门结构，因为后者的计划较便宜。 OLB说服国会通过立法，要求该军团提高所有三条运河的防洪墙。此外，兵团试图限制项目成本的另一尝试是进行了板桩荷载测试（E-99研究），但错误地解释了结果，并错误地得出结论，板桩仅需打入17英尺（1英尺）的深度。 = 0.3048米），而不是31到46英尺之间。该决定节省了大约1亿美元，但大大降低了整体工程的可靠性。

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