摘要
中小流域一般属于实测水文资料缺乏地区,河流水文站点不仅稀少,观测方法通常也比较简陋,资料的可靠性也比较差,但是中小流域一般都有较长降雨观测资料。为了解决无(缺)水文资料地区的中小流域设计洪水的问题,从暴雨推求洪水的思路出发,以缺乏实测水文资料的资水河流域为研究对象,探讨了比较常用、且具有一定理论基础的美国推理公式和"中铁法"在中小流域的适用性。通过对资水河邻近流域选取具有较长实测资料的相似中小流域构建了相应的计算公式,并对2种方法的计算精度进行了分析验证,结果表明,"中铁法"较美国推理公式精度更高,更适合利用暴雨推求中国中小河流的设计洪水。
In order to solve the problems of designing flood for the current reclamation of data scarce small to medium scale fiver basins, the method of estimating flood from rainfall data observed in fiver basins was proposed. Two approach,~s of US Rational Formula and ＂Zhongtie Method＂ were investigated in a case study of Zishui River basin for its adaptability. The et^timation equations were estab- lished by adjacent fiver basins with similar catchment scales and observed hydrological data. Results indicated that design floods ob- tained by Zhongtie method are much more accurate than those by US Rational Formula. Therefore, Zhongtie method is a suitable ap- proach for the design flood estimation in the small to medium scale catchments in China.
出处
《四川大学学报（工程科学版）》
EI
CAS
CSCD
北大核心
2012年第4期39-44,共6页
Journal of Sichuan University (Engineering Science Edition)
关键词
中小河流
综合治理
设计洪水
洪峰流量
资水河
small to medium scale rivers
comprehensive reclamation
design flood
peak flow
Zishui River
