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  1. INDEX:刊行種別
  2. 研究報告・研究技報
  1. INDEX:組織別
  2. 農研機構 農村工学研究部門
  3. 技報
  4. 農村工学研究所技報
  5. 207号

落差工の消音装置

https://doi.org/10.24514/0002001314
https://doi.org/10.24514/0002001314
c095c7d2-7452-47ef-921e-d5a2509c3529
None
プレビュー
名前 / ファイル ライセンス アクション
TRNIRE207_p161-182.pdf TRNIRE207_p161-182.pdf (4.6 MB)
(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)
公開日 2025-05-30
タイトル
タイトル 落差工の消音装置
言語 ja
タイトル
タイトル Hush Device at Ground Sill
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 article
ID登録
ID登録 10.24514/0002001314
ID登録タイプ JaLC
著者 後藤, 眞宏

× 後藤, 眞宏

en GOTO, Masahiro

ja 後藤, 眞宏

ja-Kana ゴトウ, マサヒロ


Search repository
浪平, 篤

× 浪平, 篤

en NAMIHIRA, Atsushi

ja 浪平, 篤

ja-Kana ナミヒラ, アツシ


Search repository
常住, 直人

× 常住, 直人

en TSUNESUMI, Naoto

ja 常住, 直人

ja-Kana ツネスミ, ナオト


Search repository
正沢, 勝幸

× 正沢, 勝幸

ja 正沢, 勝幸

ja-Kana ショウザワ, カツユキ

en SHOUZAWA, Katsuyuki


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関谷, 明

× 関谷, 明

ja 関谷, 明

ja-Kana セキヤ, アキラ

en SEKIYA, Akira


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抄録
内容記述タイプ Abstract
内容記述 Large-scale irrigation and drainage system was established and agricultural water has been supplied stably to the paddy or upland fi eld, by the project of agricultural infrastructure improvement and rural development. As a result, the productivity of agriculture has improved greatly. On the other hand, urbanization or mixing of suburbs and agricultural areas has progressed in the rural area, the stream sound in the waterway, especially the fall water sound at the ground sill, has been recognized as a noise for people who had come to reside newly around the agricultural channel.
Such a fall water noise becomes a problem also in the district where A mail canal goes side by side with B line road. In this research, a simple hush device to decrease the noise at the ground sill in the agricultural channel is developed, by the fi eld investigation and the hydraulic model experiment, for this district. This device is the one that the thinning wood that tied like the raft is set up by the ground sill, the length is assumed to be 10.0m, and the downstream edge is fi xed by the tension. It is confi rmed that hydraulic jump at ground sill's downstream can be prevented generating and the sound pressure level of the audible sound range and the low frequency sound range decreases by setting up this device.
However, the hydraulic model experiment is executed on the scale of 1/2, and it is uncertain whether it is possible to decrease the sound pressure level in the locale. Therefore, as future tasks, it is necessary to conduct the experiment on the full scale and to confi rm the effect in the locale. In addition, it is necessary to expand the range of the experimental condition so that this device may be applicable even if the hydraulic condition and the geographical features condition are different from the conditions of the targeted district.
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 207, p. 161-182, 発行日 2008-03-31
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
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