1987 Fiscal Year Final Research Report Summary
Motion of landslides and debris flows -Prediction of hazard area-
| Project/Area Number |
61480062
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
林学
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| Research Institution | Kyoto University |
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Principal Investigator |
SASSA Kyoji Assoc. Prof. of Disaster Prevention Research Institute Kyoto University, 防災研究所, 助教授 (30086061)
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| Co-Investigator(Kenkyū-buntansha) |
SUEMINE Akira Research Associate, Disaster Prevention Research Institute, Kyoto University, 防災研究所, 助手 (00109092)
HIURA Hiromasa Research Associate, Dept of Forestry, Kyoto Prefectural University, 農学部, 助手 (30046495)
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| Project Period (FY) |
1986 – 1987
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| Keywords | Hazard Mapping / Simulation / Landslides / 土石流 |
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| Research Abstract |
This research is to predict a hazard area caused by landslides (and friction - dominating - debris flows). A new method has been developed to simulate the motion of landslides and debris flows by combination of soil mechanics and flow dynamics. This new simulation model uses two geotechnical parameters, one is the apparent friction on the sliding surface, it expresses "how far does the londslide move ?",and another is the lateral pressure ratio inside the moving mass,it expresses "how widely does the landslide spread ?". The application of this method to a model sloke and also to the Ontake debris avalanche could give reasonable results,and showed that this method can be a basis for a reliable hazard mapping on londslides
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