2014 Fiscal Year Final Research Report
Mechanism of multi-modal compound disaster at Shaolin Village caused by typhoon No. 8 in 2009 and warning and evacuation strategy
| Project/Area Number |
23404006
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Natural disaster science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
GONDA Yutaka 新潟大学, 自然科学系, 准教授 (10303116)
TSUTSUMI Daizo 京都大学, 防災研究所, 准教授 (40372552)
FUJITA Masaharu 京都大学, 防災研究所, 教授 (60181369)
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| Co-Investigator(Renkei-kenkyūsha) |
HOTTA Norifumi 筑波大学, 生命環境系, 准教授 (00323478)
IMAIZUMI Fumitoshi 静岡大学, 農学部, 准教授 (80378918)
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| Research Collaborator |
SHIEH Chjeng-Lun 台湾国立成功大学, 教授
LEE Shin-Ping 台湾国立成功大学, 防災研究センター
CHEN Yu-Shiu 台湾国立成功大学, 防災研究センター
TSAI Yuan-Jung 台湾国立成功大学, 防災研究センター
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Keywords | 深層崩壊 / 土石流 / 複合災害 / 飽和鉛直浸透 / 数値シミュレーション |
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| Outline of Final Research Achievements |
The causes of the Shaolin Village disaster are the occurrence of a deep-seated landslide, of cause, and the loss of the No.8 Bridge to connect neighbor safe village at about 10 hours before the occurrence of the landslide. The loss of the bridge was caused by aggradation of riverbed. However, based on the field observation on hydrological characteristics of the basin the No.8 Bridge crossing and numerical simulations of sediment runoff and riverbed evolution in the basin, the rainfall during Typhoon No.8 could not cause the loss of No.8 Bridge and rainfalls before Typhoon No.8 might act important rule for aggradation of the riverbed. These results say that, when we discuss about the warning and evacuation strategy to avoid the disaster like Shaolin Village disaster, it is necessary to take into account not only the occurrence and moving of deep-seated landslide but riverbed evolution in the period of heavy rainfall to assess the allowable bed level and safe evacuation route and site.
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| Free Research Field |
自然災害科学
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