2017 Fiscal Year Final Research Report
Three-dimensional analysis with GPR(ground penetrating radar) of supercritical flow deposits
| Project/Area Number |
15K05322
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Natural History Museum and Institute, Chiba |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MIYATA YUICHIRO 山口大学, 創成科学研究科, 教授 (60253134)
YOSHII TAKUMI (一財)電力中央研究所, 主任上席研究員
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| Project Period (FY) |
2015-10-21 – 2018-03-31
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| Keywords | 射流堆積物 / GPR / 3次元解析 |
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| Outline of Final Research Achievements |
A tsunami experiment was conducted in a wave flume (205 m in length, 60 cm in width, 95 cm in depth) in CRIEPI. GPR (Ground Penetrating Radar) scanning with a high frequency antenna (1.6 GHz) was performed for the experiment deposits. The used material was sand (median, 0.2 mm) and dune (20 cm in height) was formed in the center of flume. A tsunami (wave height, 80 cm) went over the dune, and run up to the landside, and deposited sand layer, 1-3 cm in thickness. GPR profiles show three-dimensional low basin-shaped reflection around the dune, and parallel reflection consisting of two levels that was a gently convex upward in the landside. The basin-shaped reflection was caused by the hydraulic jump at dune and the gently convex upward reflection might be formed from antidute.
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| Free Research Field |
堆積学
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