分布型モデルを用いた都市河川流域における流出抑制施設の効果の比較
水工学論文集 Volume 45
Page 109-114
published_at 2001-02
アクセス数 : 769 件
ダウンロード数 : 474 件
今月のアクセス数 : 2 件
今月のダウンロード数 : 1 件
この文献の参照には次のURLをご利用ください : https://ir.lib.hiroshima-u.ac.jp/00016600
File |
suikogaku_45_109.pdf
507 KB
種類 :
fulltext
|
Title ( jpn ) |
分布型モデルを用いた都市河川流域における流出抑制施設の効果の比較
|
Title ( eng ) |
Study on effects of storm-water detention facilities in an urbanized watershed using a distributed model
|
Creator |
Jia Yangwen
Ni Guangheng
Kinouchi Tsuyoshi
Yoshitani Junichi
Suetsugi Tadashi
|
Source Title |
水工学論文集
|
Volume | 45 |
Start Page | 109 |
End Page | 114 |
Abstract |
A distributed hydrological model - WEP (Water and Energy transfer Process) model is improved at first by adding overland flow and storm-water detention pond's components, as well as changing the kinematic wave method into the dynamic wave method for the flow routing of main rivers to consider tidal effects. The modified model is then utilized to evaluate the effects of storm-water detention ponds and infiltration trenches in the Ebi river watershed with a grid size of 50m and a time step of 10 minutes. The simulation of the Shibayama-Danchi No.1 storm-water detention pond at the upstream of Miyamae tributary is performed by adopting a design rainfall of one day duration and 50mm/hour peak. Four cases, namely, with pond, with trench, with pond and trench and without pond and trench are studied at 4 sites, namely, pond outlet, Miyamae river downstream, Ebi river middle-stream and Ebi river mouth. Through comparing the hydrographs at the 4 sites in the 4 cases, it is found that the storm-water detention pond plays a much bigger role than infiltration trenches in flood peak reduction in the upstream reach, whereas infiltration trenches distributed over the watershed play a dominant role in the downstream reach. Therefore, the joint implementation of storm-water detention ponds and infiltration trenches may be necessary for effective flood damage mitigation in a whole watershed.
|
Keywords |
hydrological cycle
urbanization
Ebi river
distributed model
storm-water detention pond
infiltration trench
|
NDC |
Construction. Civil engineering [ 510 ]
|
Language |
jpn
|
Resource Type | journal article |
Publisher |
土木学会
|
Date of Issued | 2001-02 |
Publish Type | Author’s Original |
Access Rights | open access |
Source Identifier |
[ISSN] 0916-7374
[NCID] AN10426673
|