The application of multiple-array method to investigate contamination of soil and groundwate
碩士 === 健行科技大學 === 土木工程系空間資訊與防災科技碩士班 === 103 === n Electrical Resistivity Tomography (ERT) survey, different electrode arrays would affect the resolution, sensitivity and the imaging ability may be affected by the lateral 3D effect. This study is to study five electrode configuration applied in groun...
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ndltd-TW-103CYU056530132019-05-15T22:08:25Z http://ndltd.ncl.edu.tw/handle/5a9d9y The application of multiple-array method to investigate contamination of soil and groundwate 應用多重電極排列法研究土壤及地下水 Wang -Jiun Jie 王俊傑 碩士 健行科技大學 土木工程系空間資訊與防災科技碩士班 103 n Electrical Resistivity Tomography (ERT) survey, different electrode arrays would affect the resolution, sensitivity and the imaging ability may be affected by the lateral 3D effect. This study is to study five electrode configuration applied in groundwater contaminated site in Taiwan, including Wenner-Schlumberger, Pole-Pole, Dipole-Diploe, Pole-Diploe and Edge-Gradient array, to evaluate their advantages and disadvantages. First, use numerical simulation with the same model and algorithm to compare the resolution with the above-mentioned electrode arrays. Second, compare the tomography in the field site with different measurement-parameter such as the interval between two electrodes and the measure time. In the last, apply the investigation results to a soil and groundwater pollution gas station site. In this study, we total simulate two differential models and test four types of electrode intervals in the field site. In the field site, we collected 63 ERT data. And in the pollution site, we conducted 6 survey lines to get 2D electrical resistivity tomography, and one 3D electrical resistivity image data. From numerical simulation, field site investigation and contaminated site research, we found that (1) Wenner - Schlumberger has better quality of data. (2) Wenner - Schlumberger and Edge-Gradient have higher resolution than others. (3) Dipole-Diploe and Edge-Gradient are easier affected by lateral 3D effect, but their resolutions to high resistivity anomaly are better. (4) Pole-Pole has poor resolution, but its lateral 3D effect is the smallest, and its sounding depth is the deepest. According to this research results, we suggested that it is better to use Wenner - Schlumberger and Edge-Gradient array to the soil and groundwater contaminated site. If it is in the high noises field site or it needs to do deeper sounding, it could append Pole-Pole array. 游峻一 2015 學位論文 ; thesis 73 zh-TW |
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碩士 === 健行科技大學 === 土木工程系空間資訊與防災科技碩士班 === 103 === n Electrical Resistivity Tomography (ERT) survey, different electrode arrays would affect the resolution, sensitivity and the imaging ability may be affected by the lateral 3D effect. This study is to study five electrode configuration applied in groundwater contaminated site in Taiwan, including Wenner-Schlumberger, Pole-Pole, Dipole-Diploe, Pole-Diploe and Edge-Gradient array, to evaluate their advantages and disadvantages. First, use numerical simulation with the same model and algorithm to compare the resolution with the above-mentioned electrode arrays. Second, compare the tomography in the field site with different measurement-parameter such as the interval between two electrodes and the measure time. In the last, apply the investigation results to a soil and groundwater pollution gas station site. In this study, we total simulate two differential models and test four types of electrode intervals in the field site. In the field site, we collected 63 ERT data. And in the pollution site, we conducted 6 survey lines to get 2D electrical resistivity tomography, and one 3D electrical resistivity image data.
From numerical simulation, field site investigation and contaminated site research, we found that (1) Wenner - Schlumberger has better quality of data. (2) Wenner - Schlumberger and Edge-Gradient have higher resolution than others. (3) Dipole-Diploe and Edge-Gradient are easier affected by lateral 3D effect, but their resolutions to high resistivity anomaly are better. (4) Pole-Pole has poor resolution, but its lateral 3D effect is the smallest, and its sounding depth is the deepest.
According to this research results, we suggested that it is better to use Wenner - Schlumberger and Edge-Gradient array to the soil and groundwater contaminated site. If it is in the high noises field site or it needs to do deeper sounding, it could append Pole-Pole array.
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author2 |
游峻一 |
author_facet |
游峻一 Wang -Jiun Jie 王俊傑 |
author |
Wang -Jiun Jie 王俊傑 |
spellingShingle |
Wang -Jiun Jie 王俊傑 The application of multiple-array method to investigate contamination of soil and groundwate |
author_sort |
Wang -Jiun Jie |
title |
The application of multiple-array method to investigate contamination of soil and groundwate |
title_short |
The application of multiple-array method to investigate contamination of soil and groundwate |
title_full |
The application of multiple-array method to investigate contamination of soil and groundwate |
title_fullStr |
The application of multiple-array method to investigate contamination of soil and groundwate |
title_full_unstemmed |
The application of multiple-array method to investigate contamination of soil and groundwate |
title_sort |
application of multiple-array method to investigate contamination of soil and groundwate |
publishDate |
2015 |
url |
http://ndltd.ncl.edu.tw/handle/5a9d9y |
work_keys_str_mv |
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