| Project/Area Number |
07660308
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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 | HIROSAKI UNIVERSITY |
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Principal Investigator |
KADONO Miyoshi HIROSAKI UNIVERSITY,FACULTY OF AGRICULTURE AND LIFE SCIENCE,LECTURER, 農学生命科学部, 講師 (80003523)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1997: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1996: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1995: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | Fill Type Dam / F.E.M / Three Dimensional Seepage / Dam and valley System / Surface of Seepage / 均一型フィルダム / 前面コア型フィルダム / 三次元有限要素法 / V字谷 / 亀裂 / フィルタイプダム / 三次元 / 浸透流 / 浸潤線 / ドレーン |
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| Research Abstract |
In the present paper, the three dimensional seepage were analyzed by finite elements methods and Sand model examination for Fill type dam and Valley system. For the fill type dam and valley system are setting to the type (1) and the type (2) of the valley's form. THe type (1) is V model, and the type (2) is triangular prism model of the valley's form.
A summary of results obtained is shown below ;
(1) The chenginng in the factor, scale of crest length, slope and abutment of dam, were analyzed by finete element metords and the sand model examinations..
(2) A seepage surface of shape are related these factors of dam.
(3) The flow lines (h lines) of type (1) converges to toe drain of dam, but the type (2) are diffused to the lower reaches of dam.
(4) The seepage points of type (1) are occurred in the high level of downstream slope under certain conditions.
(5) These results cannot be obtained analyzes by the two dimensional seepage.
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