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水路の沈下による水利用・水理機能の低下に関する実態調査および分析
https://doi.org/10.24514/0002001427
https://doi.org/10.24514/0002001427ab51b441-7781-4099-a6d5-b2404014dbb1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TRNIREJ212_29-42.pdf (4.2 MB)
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(c) 国立研究開発法人 農業・食品産業技術総合研究機構
National Agriculture and Food Research Organization, Japan |
| Item type | 紀要論文 / Departmental Bulletin Paper_03(1) | |||||||||||||||||||||||||||||||||||||
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| 公開日 | 2025-11-14 | |||||||||||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||||||||||
| タイトル | 水路の沈下による水利用・水理機能の低下に関する実態調査および分析 | |||||||||||||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||||||||||
| タイトル | Field Survey on the Subsidence of the Canals and Its Influence on the Water Delivery and Hydraulic Functions | |||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||||||||||||||||
| 言語 | jpn | |||||||||||||||||||||||||||||||||||||
| 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 | 10.24514/0002001427 | |||||||||||||||||||||||||||||||||||||
| ID登録タイプ | JaLC | |||||||||||||||||||||||||||||||||||||
| 著者 |
中田, 達
× 中田, 達
× 藤山, 宗
× 樽屋, 啓之
× 田中, 良和
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| 抄録 | ||||||||||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||||||||||
| 内容記述 | The subsidence often occurs in the open canals under long-term service located on the weak ground. The phenomena like overflow and water leakage caused by the subsidence of the canals decreased the water use and hydraulic functions. In this study, we estimated the subsidence of the canals by interviews to irrigation systems administrators and by surveying longitudinal sections of irrigation canals in Fukuokazeki and Okazeki irrigation systems. The subsidence of the open canals was easy to occur in the valleys with the alluvial soil which deeply entrenched highland. The new canals were renovated with the deeply-driven piles to the stable ground if the subsidence occurred more than 30 cm which is one of criteria of acceptance for renewal projects. The other subsidence canals were repaired by expansion of canals walls to be equal to original design levels. Maximum expansion of canals walls reached to 70 cm. However, the water surface in subsidence channels jointed smoothly to the renewal channels without rapidly-varied flow. By water level calculations, it is estimated that water levels in subsidence canals declined around 10 cm from original design levels. The intake weirs installed in some section suggest the water management methods changed to divide water to branch lines. The check points for function diagnosis were listed based on each indicator such as free board, water level, water diversion, and water leakage. Accumulating field survey data and defining appropriate performance requirement are needed to evaluate how each problem decreases water use and hydraulic functions. | |||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||
| 書誌情報 |
ja : 農村工学研究所技報 en : Technical report of the National Institute for Rural Engineering 巻 212, p. 29-42, 発行日 2012-03-31 |
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| 出版者 | ||||||||||||||||||||||||||||||||||||||
| 出版者 | 独立行政法人 農業・食品産業技術総合研究機構 農村工学研究所 | |||||||||||||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||||||||||||||
| 出版者 | National Agriculture and Food Research Organization, National Institute for Rural Engineering | |||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||||||||||||||||
| 収録物識別子 | 1882-3289 | |||||||||||||||||||||||||||||||||||||
