Triggering of landslides under extreme meteorological environment and landslide hazard mitigation
| Project/Area Number |
23380084
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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 |
Forest science
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| Research Institution | Kyoto University |
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Principal Investigator |
WANG Gonghui 京都大学, 防災研究所, 助教 (50372553)
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| Co-Investigator(Kenkyū-buntansha) |
SUEMINE Akira 京都大学, 防災研究所, 准教授 (00109092)
KAMAI Toshitaka 京都大学, 防災研究所, 教授 (10277379)
MATSUURA Sumio 京都大学, 防災研究所, 教授 (10353856)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
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| Keywords | 崩壊 / 地すべり / 土石流 / 異常気象 / 気圧 / 豪雨 / 極端気象 / 不飽和土 / 気圧変化 / 危険度評価 / 台風 / 降雨 / サクション |
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| Research Abstract |
To understand the mechanism of landslides occurring during abnormal weather condition and then to develop a new evaluation approach of landslide hazard, we made field survey of some landslides recently occurred in Japan, set up a new monitoring system on a landslide, and also did laboratory tests. The main results could be summarized as follow. 1) Lowered air pressure during typhoon failed to reactivate a landslide, but affected the movement after the sliding was triggered by rainfall. 2) Localized shearing on unsaturated soil layers may result in the moisture transfer within the soil layer and then affect the shear behavior or stability. 3) Water repellency of the soil layer may greatly affect the initiation and movement mechanism of shallow landslides.
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Report
(4 results)
Research Products
(54 results)
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[Journal Article] Some fluidized landslides triggered by the 2011 Tohoku Earthquake(M9.0)2014
Author(s)
Wang, G., Suemine, A., Zhang, F., Hata, Y., Fukuoka, H., Kamai, T
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Journal Title
Japan. Geomorphology
Volume: 208
Pages: 11-21
DOI
Related Report
Peer Reviewed
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[Journal Article] Satellite remote sensing based detection of the deformation of a reservoir bank slope in Laxiwa Hydropower Station2013
Author(s)
Zhang, D.X., Wang, G., Yang, T.J., Zhang, M.C., Chen, S.H., Zhang, F.Y
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Journal Title
China. Landslides
Volume: 10(2)
Issue: 2
Pages: 231-238
DOI
Related Report
Peer Reviewed
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[Journal Article] Effectiveness of a new organic polymer sand-fixing agent on sand fixation2012
Author(s)
Liu, J., Shi, B., Lu, Y., Jiang H.T., Huang, H., Wang G., Kamai, T
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Journal Title
Environmental Earth Science
Volume: 65
Issue: 3
Pages: 589-595
DOI
Related Report
Peer Reviewed
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