2012 Fiscal Year Final Research Report
Development of site characterization technique for subsurface preferential flow
| Project/Area Number |
22580283
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
KURODA Seiichiro 独立行政法人農業・食品産業技術総合研究機構, 農村工学研究所・施設工学研究領域, 主任研究員 (30343768)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 地盤 / 原位置評価 / 電磁波探査 / 浸透 / 原位置評価 |
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| Research Abstract |
We develop new measurement and analytical method of electromagnetic survey, in order to visualize hydro-geological structure and to detect non-uniform soil water flow like preferential flow, with higher resolution and sensitivity. We surveyed the subsurface phenomena caused by water and air flow through soil using cross-borehole ground penetrating radar. Especially to detect tiny change in soil, we proposed the monitoring technique based on the simultaneous measurement system using Opt-Electrical sensors and on the waveform analysis technique for scattered electromagnetic wave from preferential flow. Finally we conducted the demonstrative tests for proposed methods.
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