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首页> 外文会议>International Symposium on Coastal Engineering and Science of Coastal Sediment Processes >Mississippi River Sand for Barrier Island Restoration in Louisiana: Geophysical Geotechnical Investigations for Sand Mining
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Mississippi River Sand for Barrier Island Restoration in Louisiana: Geophysical Geotechnical Investigations for Sand Mining

机译：密西西比河沙子在路易斯安那州的障碍岛恢复：沙坑地球物理和岩土工程研究

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摘要

Coastal land loss in the Mississippi River delta region contributes to loss of valuable habitat and coastal flooding hazards Restoration of these ecosystems is a primary activity that requires large volumes of sand to rebuild beach-dune systems and restore wetland habitats Sand sources have traditionally been sought offshore in the marine environment but there are problems associated with setbacks from oil and gas infrastructure, presence of muddy overburden, and limited reserves of beach-quality sediments The potential of sand sources in channel and point bar deposits becomes an attractive alternative for barrier island restoration, especially because fluvial sediments are renewable. Results of preliminary geophysical and geotechnical investigations in the lower Mississippi River (south of New Orleans) along a 32-km stretch of the river indicate the presence of at least 23 million m3 of usable sand.
机译：密西西比河三角洲地区的沿海地区失利有助于损失宝贵的栖息地，沿海洪水危害这些生态系统的恢复是一种主要的活动，需要大量的沙子来重建海滩 - 沙丘系统，传统上恢复了湿地栖息地沙源的近海在海洋环境中，有与石油和天然气基础设施的挫折有关的问题，泥泞的覆盖层的存在，以及海滩品质沉积物的有限储备，渠道和点杆沉积物的潜在障碍物的潜在替代方案，特别是因为氟沉积物是可再生的。沿着一条32公里的河流沿着密西西比河（新奥尔良南部）初步地球物理和地岩石调查结果表明存在至少2300万M3的可用沙子。

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