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農業用ため池の豪雨災害に関する研究
https://doi.org/10.24514/00002077
https://doi.org/10.24514/000020778364dd76-a08c-4695-9627-4267018ef4de
| 名前 / ファイル | ライセンス | アクション |
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nkk_report_No44p139-247p.pdf (3.1 MB)
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| Item type | 紀要論文01 / Departmental Bulletin Original Article(1) | |||||||||||
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| 公開日 | 2019-03-22 | |||||||||||
| タイトル | ||||||||||||
| タイトル | 農業用ため池の豪雨災害に関する研究 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Damage of Small Earth Dams for Irrigation Induced by Heavy Rainfall | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | jpn | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | 農業用ため池 | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | 豪雨災害 | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||
| ID登録 | ||||||||||||
| ID登録 | 10.24514/00002077 | |||||||||||
| ID登録タイプ | JaLC | |||||||||||
| 著者 |
堀, 俊和
× 堀, 俊和
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | There are 21,0000 small earth dams in Japan which are important water resources for agriculture. Because they were constructed long time ago, many of them are aged and collapses of these dams, induced by heavy rainfall, occur almost every year. Author investigated these damaged dams and conducted model tests in order to revealed mechanisms of embankment dam's failures induced by heavy rainfall. First of all, damages of embankment dams induced by rainfall are classified into 3 types, such as seepage failure, sliding and overflow. Influences of rainfall precipitation and increase of reservoir level to each type of damages are described. In terms of seepage failure, following mechanism were revealed. Initially cracks occurred in embankments by hydraulic fracturing or some environmental effects. These cracks make permeability of upstream slope of embankments high for a long time. When reservoir levels rapidly razed by heavy rainfall, these cracks open and piping failures occur. In terms of sliding failure, effects of rainfall and filling to stability of embankments are described. It is considered that large sliding failures likely occur by heavy rainfall or rapid filling. Also, rapid filling causes piping failures, which progress sliding failure of downstream slopes. In terms of overflow failure, conditions of downstream slope surface effect degree of damages when reservoir water overtop on embankments. | |||||||||||
| 書誌情報 |
農村工学研究所報告 en : Bulletin of the NARO, Rural Engineering 巻 44, p. 139-247, 発行日 2005-03-01 |
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| 出版者 | ||||||||||||
| 出版者 | 独立行政法人 農業・生物系特定産業技術研究機構 農村工学研究所 | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1882-3262 | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.24514/00002077 | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
