2009 Fiscal Year Final Research Report
Study on groundwater flow system through fractures
| Project/Area Number |
19580289
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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 Agricultural Research Organization |
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Principal Investigator |
OKUYAMA Takehiko National Agricultural Research Organization, 農学部, 教授 (20343767)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 水循環 / 地盤工学 / 地下水 / 土砂災害 |
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| Research Abstract |
Groundwater flowing through fracture zone with high rate often becomes the principal cause of material transfer and slope disaster. Landslides and earthquakes promote loosening of the ground with fractures and increase infiltration. The sonde system was developed to measure groundwater potential and water sampling at arbitrary depth in all-strainer type boreholes. Groundwater potential monitoring was conducted in snow melting season in upper area of Shimekake Landslide. Increase in groundwater pressure due to big earthquakes was observed in Tateshita Landslide.
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