Study on high speed and long run-out movement of earthquake induced landslides by considering earthquake trampoline effect
| Project/Area Number |
22310113
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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 | 一般 |
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| Research Field |
Natural disaster science
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| Research Institution | Kyushu University |
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Principal Investigator |
CHEN Guangqi 九州大学, 基幹教育院, 教授 (50293882)
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| Co-Investigator(Kenkyū-buntansha) |
ZEN Kouki 九州大学, 工学研究院, 教授 (50304754)
ZHOU Guoyun 西日本工業大学, 工学部, 教授 (50322293)
KASMA Kiyonobu 九州大学, 工学研究院, 准教授 (10315111)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2011: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2010: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
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| Keywords | 巨大地震 / 高速 / 遠距離運動 / トランポリン効果 / 多重加速モデル / 数値シミュレーション / 不連続変形法DDA / 土砂災害 / 斜面崩壊 / 高速・遠距離運動 / 土砂災害連鎖 / リスク / DDA / 天然ダム |
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| Research Abstract |
The purpose of this study is to clarify the mechanism of high speed and long run-out movement of earthquake induced landslide and to develop a practical numerical simulation program for predicating the movement behaviors. The primary factor causing high speed and long run-out was considered as trampoline effect of earthquake on the movement of an object on ground. A ping-pong model has been proposed for clarifying how and why trampoline occurs. Based on this physical model, a multiply acceleration numerical model has been proposed for explaining how the high speed and long run-out are induced. A practical DDA (Discontinuous Deformation Analysis) program has been developed successfully by incorporating the new model, which can be used for predicating or estimating landslide movement in detail. A new risk evaluation method has been proposed based on earthquake induced landslide disaster chain model. Thus, it is expected that the achievements in this study are useful and helpful in mitigating unexpected large loss and serious damages from earthquake induced landslides
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Report
(4 results)
Research Products
(101 results)
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[Journal Article] Effects of climate change on geo-disasters in coastal zones and their adaptation2011
Author(s)
Yasuhara, K., Komine, H., Yokoki, H., Suzuki, T., Mimura, N., Tamlira, M., Chen, G.
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Journal Title
Journal of Geotextiles and Geomembranes
Volume: 30
Pages: 24-34
Related Report
Peer Reviewed
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[Presentation] Application of GEOBIA-Multinomial logistic regression for landslide vulnerability assessment in Kayangan catchment, Indonesia2012
Author(s)
Samodra, G., Chen, G., Sartohadi, J., Kasama, K., Hadmoko, D. S.
Organizer
International Conference on Geographic Object Based Image Analysis
Place of Presentation
Rio de Janeiro, Brazil
Related Report
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[Presentation] Spatial pattern of socio-economic landslide vulnerability and its spatial prediction by means of GIS-Fuzzy logic in Kayangan catchment, Indonesia2012
Author(s)
Samodra, G., Chen, G., Sartohadi, J., Kasama, K., Hadmoko, D.S.
Organizer
International Conference on Disaster Management 2012, The 8th Annual Conference of IIIRR
Place of Presentation
Kumamoto
Related Report
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[Presentation] GIS-based numerical simulation of debris flow2012
Author(s)
Wu, J., Chen, G., Kasama, K., Zheng, L., Zhang, Y.
Organizer
The world congress on advances in civil, environmental, and materials research
Place of Presentation
Seoul, Korea
Related Report
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[Presentation] Effects of vertical seismic force on the initiation of the Daguangbao landslide induced by the Wenchuan earthquake2012
Author(s)
Zhang, Y., Chen, G., Zheng, L., Wu, J., Zhuang, X.
Organizer
International Conference on Disaster Management 2012, The 8th Annual Conference of IIIRR
Place of Presentation
Kumamoto
Related Report
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[Presentation] Rockfall simulation with Consideration of multi-blocks using 3D DDA and its application to countermeasures2012
Author(s)
Zheng, L., Chen, G., Kasama, K., Li, Y., Zhang, Y.
Organizer
7th Asian Rock Mechanics Symposium (ARMS 2012)
Place of Presentation
Seoul, Korea
Related Report
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