碩士 / 國立交通大學 / 土木工程系所 / 102 / Due to rapid growth of economy, the amount of government owned or privately owned industrial zone had increased dramatically. In some of those industrial zones, faulty managements may lead to soil and water pollution. From 2000, the regulation of soil and water pollution had passed. EPA and authorities began to monitor, detect pollution, control and remediate groundwater. Among those industrial zones, some of them locate at shoreline. The flow path of groundwater was not easy to predict probably because of tidal influence. In order to understand tidal influence further and to design better groundwater monitoring system, in this research, groundwater transportation with tidal influence in industrial zones in shoreline is discussed with numerical simulation.
The Taichung Export Processing Zone was chosen to be the target of case study in this research. Sources of pollutants are set in different locations, and then the influence of tidal change to pollutants is discussed. The groundwater flow simulation codeand contaminant transport code selected for this study were MODFLOW and MT3DMS, respectively. Besides being set up along theshoreline, tide was also set up in two drainage channels along the sides of the Taichung Export Processing Zone at the same time. The sources of pollutions are set in nine locations. The expansion of the plume is analyzed.
The results show that the degree of effect of tide on thetransport of contaminantvaried withthe distance between the plume and the tidal boundaries.Furthermore, with low hydraulic conductivity, the degreeof plume expansion is larger than that without considering thetidal effect. With higher hydraulic conductivity, the extentof plume expansion is smaller than the condition with no tide change. According to the results,the shape and size of the plume were affected by the tidal action. As a result, tidal influence should be considered when designing the systemgroundwater monitoring wells.
| Identifer | oai:union.ndltd.org:TW/102NCTU5015098 |
| Date | January 2014 |
| Creators | Fang, Chyi-Yuh, 方麒淯 |
| Contributors | Shan, Hsin-Yu, 單信瑜 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 163 |
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