Study on Synthesizing Runoff models for Estimating Design Flood Discharge

估算设计洪水流量的综合径流模型研究

基本信息

批准号：
03556030
负责人：
YOMOTA Atsushi
金额：
$ 6.02万
依托单位：
OKAYAMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03556030/
关键词：
Flood runoff analysis Flood runoff characteristics Kinematic runoff model Storage function model Tank model Unit hydrograph Effective rainfall Retention curve 洪水流出造成農地流出解析ピーク流量直接流出開畑地洪水ピ-ク流量洪水到達時間

项目摘要

Some typical flood runoff models are applied to hydrological data observed at three reclaimed upland fields, 16 mountainous watersheds, and two grass lands. The main results obtained in this study are summarized as follows.1. Continuous observation of rainfall and runoff in a reclaimed upland field has been carried out, where tobacco is mainly cultivated on ridges covered with vinyl film. The kinematic runoff model is applied and is shown to give good results. Moreover, the tank and the storage function models are used successfully for flood runoff analysis.2. The relation between total rainfall and retention are investigated and formulated on the basis of the results in reclaimed upland fiels, grass land, and mountainous basins.3. A method is proposed for estimating effective rainfall from the tank model. Using the effective rainfall, interrelationships between the storage function and the tank models are studied. New formulae are suggested to estimate the parameters of the tank model from those of the storage function model.4. For engineering pourposes, table of results in many basins is prepared, in which results of retention curve, peak runoff characteristics, parameters of the kinematic, the storage function, and the tank models are listed for each basin.5. Standardization of the unit hydrograph method is attemted using results of several mountainous basins, and it is shown that a form of unit hydrograph can be estimated by only a few basic information of watershed, and that estimated discharge is acurate enough for drainage plan.

一些典型的洪水径流模型适用于在三个围垦的旱地、16 个山地流域和两个草地观测到的水文数据。本研究取得的主要结果如下： 1．对一片开垦的旱地的降雨和径流进行了连续观测，该地主要在覆盖乙烯基薄膜的田埂上种植烟草。应用运动学径流模型并显示出良好的结果。此外，水箱和蓄水功能模型已成功应用于洪水径流分析。 2．根据复垦旱地、草地和山地盆地的研究结果，研究并制定了总降雨量与滞留量的关系。 3．提出了一种根据水箱模型估算有效降雨量的方法。利用有效降雨量，研究蓄水功能与水箱模型之间的相互关系。提出了根据储存功能模型参数估计储罐模型参数的新公式。 4．出于工程目的，编制了多流域结果表，列出了各流域的滞留曲线、洪峰径流特征、运动学参数、蓄水功能、水池模型等结果。 5．利用几个山区流域的结果，尝试对单位过程线方法进行标准化，结果表明，只需流域的少量基本信息就可以估算出单位过程线的形式，并且估算的流量对于排水规划来说是足够准确的。