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Railway embankment failure due to ballast layer breach caused by inundation flows
http://hdl.handle.net/2237/26872
http://hdl.handle.net/2237/268722a3ecc35-2d5a-45b3-88f9-808fe51e9a8d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
tsubaki17railway.pdf ファイル公開：2018/06/01 (1.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-08-03 | |||||
| タイトル | ||||||
| タイトル | Railway embankment failure due to ballast layer breach caused by inundation flows | |||||
| 言語 | en | |||||
| 著者 |
Tsubaki, Ryota
× Tsubaki, Ryota× Kawahara, Yoshihisa× Ueda, Yasuhiro |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | The final publication is available at Springer via https://doi.org/10.1007/s11069-017-2789-3 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Embankment breaching | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Railway embankment | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Ballast | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Non-Darcian flow | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Shallow-water flow model | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A railway embankment constructed on a floodplain is at risk of damage due to flooding flows. The process and critical conditions that lead to railway embankment damage during flooding are not clearly understood, rendering risk estimations impossible and hindering the development of flood-resilient rail systems. For this work, we first reviewed records of railway damage in flood plains and flows through the ballast layer. The breaching process was selected as the focus of our study. We secondly specified the fundamental characteristics of flows through a ballast layer. The critical flow rate per unit width and the minimum upstream water depth required for initiating extensive ballast breaching were experimentally evaluated using a full-scale ballast layer with rails and sleepers constructed using materials originally utilized in actual railways. A two-dimensional flow model was then employed for estimating the flow through a ballast layer that was placed on an impermeable base embankment. A simple ballast breaching model was also employed in order to explore a higher flow rate condition that could not be represented in our experiment due to limited facilities. The breaching pattern represented by the simulation model corresponded to the breaching pattern observed in the experiment. In addition to the above, here, we also discuss the ballast breaching process based on qualitative field records and quantitative experimental results, as well as the ballast breaching process as represented by the simulation. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Springer | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1007/s11069-017-2789-3 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0921-030X | |||||
| 書誌情報 |
en : Natural Hazards 巻 87, 号 2, p. 717-738, 発行日 2017-06 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | https://doi.org/10.1007/s11069-017-2789-3 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/26872 | |||||
| 識別子タイプ | HDL | |||||
