Effects of Hurricanes Katrina and Rita Flooding on Louisiana Pavement Performance
Effects of Hurricanes Katrina and Rita Flooding on Louisiana Pavement Performance
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卡特里娜飓风和丽塔洪水对路易斯安那州路面性能的影响
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Zhongjie Zhang
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文献类型：
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作者：
Xingwei Chen;Zhongjie Zhang
2005年8月和9月，路易斯安那州遭受了卡特里娜飓风和丽塔飓风的重创。大新奥尔良地区大约有2000英里的道路被淹没在洪水中长达5周。飓风过后，路易斯安那州交通与发展部（LADOTD）非常关注被淹地区的路面结构，因为持续的洪水，以及重型碎片卡车交通对路面的破坏。在本研究中，对飓风发生前后收集的02区（受飓风影响最严重的地区）路面性能系统（PMS）数据进行了分析，以评估由于持续的洪水或/和重型碎片卡车交通造成的路面性能损害。PMS数据显示，由于飓风过后需要重型卡车或车辆装载来运输大量残骸，高速公路受到的破坏有所增加。此外，数据表明，由于路基部件最初的设计不能承受这种车辆荷载，并且由于道路长时间浸没在水中，可能会进一步削弱，因此发生的劣化升级。2005年8月，新奥尔良和路易斯安那州东南部被卡特里娜飓风摧毁。近4周后，飓风丽塔进一步破坏了路易斯安那州的基础设施，并再次给新奥尔良地区带来破坏。大新奥尔良地区大约有2000英里的道路被淹没在洪水中长达5周（Zhang et al., 2008）。图1展示了路易斯安那州交通与发展部（LADOTD）根据美国气象局提供的信息绘制的洪水地区地图
In August and September of 2005, Louisiana was devastated by Hurricanes Katrina and Rita. There were approximately 2,000 miles of roadway in the Greater New Orleans area which were submerged in floodwaters for up to 5 weeks. After the hurricanes, there was great concern in the Louisiana Department of Transportation and Development (LADOTD) about the pavement structures in the flooded area due to the sustained flooding, as well as the pavement damage from the heavy debris trucking traffic. In this study, the pavement performance system (PMS) data for District 02 (most seriously influenced by Hurricanes) collected before and after the Hurricanes were analyzed to assess the pavement performance damage due to the sustained flooding or/and the heavy debris trucking traffic. The PMS data illustrated increased damage to highways as a result of heavy trucking or vehicle loading required to transport the vast amounts of debris following the Hurricanes. In addition, the data established an escalation in deterioration occurring as subgrade components were not initially designed to sustain such vehicle loads and may have been further weakened as roadways were submerged in water for extended periods of time. INTRODCUTION In August of 2005, New Orleans and southeastern Louisiana was devastated by Hurricanes Katrina. Nearly 4 weeks later, Hurricane Rita further damaging Louisiana's infrastructure and bringing destruction to the New Orleans area once again. There were approximately 2,000 miles of roadway in the Greater New Orleans area which were submerged in floodwaters for up to 5 weeks (Zhang et al., 2008). Figure 1 presents the map of flooded area developed by the Louisiana Department of Transportation and Development (LADOTD) based on information provided by the