1998 Fiscal Year Final Research Report Summary
Study on Tsunami Disaster due to Landslide
| Project/Area Number |
09680447
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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 |
Natural disaster science
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| Research Institution | TOTTORI UNIVERSITY |
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Principal Investigator |
HINOKIDANI Osamu Tottori Univ., Dept.of Civil Eng., Associate Professor, 工学部, 助教授 (00165127)
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| Co-Investigator(Kenkyū-buntansha) |
MIYAMOTO Kuniaki Tottori Univ., Center for Joint Research and Development, Associate Professor, 地域共同研究センター, 助教授 (00263492)
MICHIUE Masanori Tottori Univ., Dept.of Civil Eng., Professor, 工学部, 教授 (10027245)
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| Project Period (FY) |
1997 – 1998
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| Keywords | Landslide / Tsunami disaster / Mt.Mayuyama / Mumerical simulation |
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| Research Abstract |
Almost 200 years ago, in 1792, a large scale landslide occurred at Mayuyama in Shimabara peninsula, Kyusyu island, Japan. About 1.5 hundred millions of sediments slid and flowed into the Ariake Bay. In this case, the huge waves like Tsunami were generated by the landslide and the wave height became more than 2Gm and 14,500 people were killed in coastal area. This disaster is one of the most huge disaster in Japan. In this project, a two-dimensional numerical simulation model for Tsunami based on one-dimensional landslide model has developed and is applied to Mayuyama disaster. In the simulation of landslide, the velocity and the thickness can be estimated over 50m/sec and about 20-30m respectively, And In wave simulation, according to comparison with simulation results and the observed one, it is found how well the calculation method introduced here recreates the change in water level which is accompanied the landslide.
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