Slope failure and subsequent debris flow occurrence on May 2017 at Iiyama, Nagano, Japan
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- HIRAMATSU Shinya
- Faculty of Agriculture, Shinshu University
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- ISHIDA Koji
- Snow Avalanche and Landslide Research Center
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- KANAZAWA Akito
- Snow Avalanche and Landslide Research Center
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- GONDA Yutaka
- Faculty of Agriculture, Niigata University
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- SAWA Yoji
- Asia Air Survey Co., Ltd.
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- TSUTSUMI Daizo
- Research Center for Fluvial and Coastal Disaster, Disaster Prevention Research Institute, Kyoto University
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- NAGAYAMA Takahiko
- Nippon Koei Co., Ltd.
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- FUKUYAMA Taijiro
- Faculty of Agriculture, Shinshu University
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- MANTOKU Masaaki
- Sabo Department, National Institute for Land and Infrastructure Management
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- MIIKE Tsutomu
- Nippon Koei Co., Ltd.
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- MORISHITA Atsushi
- Yuzawa Sabo Office, Hokuriku Regional Development Bureau, MLIT
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- YAJIMA Koichi
- Japan Conservation Engineers Co., Ltd.
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- YAMADA Yasuhiro
- Japan Conservation Engineers Co., Ltd.
Bibliographic Information
- Other Title
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- 平成29年5月長野県飯山市井出川流域で発生した大規模崩壊と土石流
- 災害報告 平成29年5月長野県飯山市井出川流域で発生した大規模崩壊と土石流
- サイガイ ホウコク ヘイセイ 29ネン 5ガツ ナガノケン イイヤマシ イデガワ リュウイキ デ ハッセイ シタ ダイキボ ホウカイ ト ドセキリュウ
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Abstract
<p>On 19 May 2017, slope failure occurred and a landslide dam formed at Idegawa watershed, Iiyama city, Nagano prefecture. After three days interval, debris flow occurred several times at Degawa River then partially reached Chikumagawa River. Although there were no loss of lives or property damage, an evacuation advisory has been issued on 20 May, then changed evacuation order on 22 May. After 23 June, this area is under evacuation advisory again. After the disaster, research team was immediately organized by The Shin-etsu Branch of Japan Society of Erosion Control Engineering. In this report, we described the magnitude and the generation processes of landslide and subsequent debris flow occurrence based on a field survey, weather observation data and the airborne laser scanning and videos. Furthermore, we evaluated the effect of the sabo-related facilities and overviewed the monitoring system and emergency measures.</p>
Journal
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- Journal of the Japan Society of Erosion Control Engineering
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Journal of the Japan Society of Erosion Control Engineering 70 (3), 41-50, 2017-09-15
Japan Society of Erosion Control Engineering
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Details 詳細情報について
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- CRID
- 1390845713000691968
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- NII Article ID
- 130007484411
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- NII Book ID
- AN0012035X
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- ISSN
- 21874654
- 02868385
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- NDL BIB ID
- 028567972
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed