Seawater Intrusion in Aquifers with Lamina

碩士 === 國立成功大學 === 水利及海洋工程學系 === 87 === Many coastal aquifers subdivided into a sequence of subaquifers by thin impervious or semipervious layers with limited length are called lamina. In this situation, a discontitinuity in the interface exists close to the coast or at some distance landw...

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Main Authors: Pei-Lun Hung, 洪培倫
Other Authors: Liu Chang Lin
Format: Others
Language:zh-TW
Published: 1999
Online Access:http://ndltd.ncl.edu.tw/handle/46371513223341187633
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spelling ndltd-TW-087NCKU00830222015-10-13T17:54:33Z http://ndltd.ncl.edu.tw/handle/46371513223341187633 Seawater Intrusion in Aquifers with Lamina 片段不透水層對海水入侵之影響 Pei-Lun Hung 洪培倫 碩士 國立成功大學 水利及海洋工程學系 87 Many coastal aquifers subdivided into a sequence of subaquifers by thin impervious or semipervious layers with limited length are called lamina. In this situation, a discontitinuity in the interface exists close to the coast or at some distance landward from it. Saltwater is present in these aquifers above freshwater and the two bodies of water are separated by an impervious layers, etc. The present work deals with the shape of tongue and the process of the interface in coastal aquifers in which a thin impervious layer is present. Experimental works are undertaken to help us realizing the insight of such hydraulics aquifers, and the process of the interface is discontinuality. This result done by experimental works can be compared with the mathematical model of FEFLOW having the same tendency. Experiments in laboratory have shown that when impervious layer is closer to the coast, the seawater intrusion is deeper in the upside aquifer. The pressure in the upside aquifer increases, and the velocity of the intrusion in the downside decreases. While the impervious layers with the different gradient increases, and the influence of interface is pronounced. Liu Chang Lin 劉長齡 1999 學位論文 ; thesis 62 zh-TW
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language zh-TW
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description 碩士 === 國立成功大學 === 水利及海洋工程學系 === 87 === Many coastal aquifers subdivided into a sequence of subaquifers by thin impervious or semipervious layers with limited length are called lamina. In this situation, a discontitinuity in the interface exists close to the coast or at some distance landward from it. Saltwater is present in these aquifers above freshwater and the two bodies of water are separated by an impervious layers, etc. The present work deals with the shape of tongue and the process of the interface in coastal aquifers in which a thin impervious layer is present. Experimental works are undertaken to help us realizing the insight of such hydraulics aquifers, and the process of the interface is discontinuality. This result done by experimental works can be compared with the mathematical model of FEFLOW having the same tendency. Experiments in laboratory have shown that when impervious layer is closer to the coast, the seawater intrusion is deeper in the upside aquifer. The pressure in the upside aquifer increases, and the velocity of the intrusion in the downside decreases. While the impervious layers with the different gradient increases, and the influence of interface is pronounced.
author2 Liu Chang Lin
author_facet Liu Chang Lin
Pei-Lun Hung
洪培倫
author Pei-Lun Hung
洪培倫
spellingShingle Pei-Lun Hung
洪培倫
Seawater Intrusion in Aquifers with Lamina
author_sort Pei-Lun Hung
title Seawater Intrusion in Aquifers with Lamina
title_short Seawater Intrusion in Aquifers with Lamina
title_full Seawater Intrusion in Aquifers with Lamina
title_fullStr Seawater Intrusion in Aquifers with Lamina
title_full_unstemmed Seawater Intrusion in Aquifers with Lamina
title_sort seawater intrusion in aquifers with lamina
publishDate 1999
url http://ndltd.ncl.edu.tw/handle/46371513223341187633
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AT hóngpéilún piànduànbùtòushuǐcéngduìhǎishuǐrùqīnzhīyǐngxiǎng
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