管水路流れにおける2方向接合円形落差マンホール部の形状損失の定式化

• 荒尾 慎司

  (株)建設技術研究所　九州支社河川部

• 楠田 哲也

  九州大学大学院　環境都市部門

書誌事項

タイトル別名

• FORMULA ON ENERGY LOSSES AT TWO-WAY CIRCULAR DROP MANHOLE

抄録

Several flood-analysis models have been already developed in construction consulting companies, universities and public research organizations. Some flood-analysis models, such as MOUSE, Info Works and SWMM have been generally used by Japanese construction consulting companies. Each formula describing the energy loss at the manhole in a storm sewer is, however, different from each software application, and consequently the results of simulation of prediction on inundation, flood area and water depth on the ground surface in urban areas are also different. A more exact estimation of the energy loss at a manhole is necessaly in flood analysis. This paper proposes a new formula for energy loss coefficients that considers structural and hydraulic elements, such as manhole size, pipe size, drop between upstream and downstream pipes, connecting angle of pipes, and water depth for a two-way circular drop manhole. In the proposed formula, calculated values of energy loss at the manhole are within an error of ±30% of the measured values in accuracy except some structural conditions for the manhole and connecting pipes.

収録刊行物

• 土木学会論文集Ｇ

  土木学会論文集Ｇ 62 (1), 162-170, 2006

  公益社団法人 土木学会

キーワード

• head loss
• drop manhole
• formula
• urban drainage

詳細情報

• CRID: 1390282680232489472
• NII論文ID: 10019321125
• NII書誌ID: AA12131726
• DOI: 10.2208/jscejg.62.162
• ISSN: 18806082
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可