1 0 0 0 OA 河川津波に伴い発生した北海道鵡川のアイスジャム再現計算
- 著者
- 吉川 泰弘 阿部 孝章 平井 康幸
- 出版者
- 公益社団法人 土木学会
- 雑誌
- 土木学会論文集B2(海岸工学) (ISSN:18842399)
- 巻号頁・発行日
- vol.68, no.2, pp.I_416-I_420, 2012 (Released:2012-11-15)
- 参考文献数
- 6
- 被引用文献数
- 2 3
The tsunami of 2011 Tohoku Pacific-Coast Earthquake broke river-ice, and generated ice jam in Hokkaido, Japan. This study aimed to clarify the phenomenon of ice jam generated by tsunami in ice covered river. We built the river-ice calculation model. In order to check the accuracy of this calculation model, we conducted ice jam experiment and a calculation value reproduced an experiment value. We understood that it was important to set up "the conditions to generate of ice jam" and "the allowable stress of river-ice" appropriately in this calculation model. This following phenomenon was found by Simulation of Ice Jam. At the time of tsunami intrusion to ice-covered river, River-ice was destroyed and moved to the upstream. River-ice was deposited in narrow river-width. Ice jam was generated at this point.
1 0 0 0 IR 河川津波に伴い発生した北海道鵡川のアイスジャム再現計算
- 著者
- 吉川 泰弘 阿部 孝章 平井 康幸
- 出版者
- 公益社団法人 土木学会
- 雑誌
- 土木学会論文集B2(海岸工学) (ISSN:18842399)
- 巻号頁・発行日
- vol.68, no.2, pp.I_416-I_420, 2012
- 被引用文献数
- 3
The tsunami of 2011 Tohoku Pacific-Coast Earthquake broke river-ice, and generated ice jam in Hokkaido, Japan. This study aimed to clarify the phenomenon of ice jam generated by tsunami in ice covered river. We built the river-ice calculation model. In order to check the accuracy of this calculation model, we conducted ice jam experiment and a calculation value reproduced an experiment value. We understood that it was important to set up "the conditions to generate of ice jam" and "the allowable stress of river-ice" appropriately in this calculation model. This following phenomenon was found by Simulation of Ice Jam. At the time of tsunami intrusion to ice-covered river, River-ice was destroyed and moved to the upstream. River-ice was deposited in narrow river-width. Ice jam was generated at this point.