摘要
特征河长(CRL)是根据水文学方法进行河道洪水演算的一个较为常用的概念,利用谢才公式导出的计算公式中提出了采用断面最大水深代替断面平均水深的计算方法。通过与精算法的比较,表明该方法简便易行、精度理想,并在河道洪水特征河长连续演算法中可作为特征河长的实际计算。
The Characteristic River Length （CRL） is a concept in common use when river flood wave is calculated using hydrological method. A new calculative formula of the CRL is proposed on the basis of Chexy＇s formula. A calculative method is introduced in this formula,that is maximum sectional water depth is instead of average sectional water depth. Through comparison with the accurate method,this method is not only simple , but also very accurate. Therefore,the method can be used as actual calculation of the CRL in the continuous calculation of river flood wave.
出处
《水电能源科学》
2007年第4期50-53,共4页
Water Resources and Power
基金
山东农业大学科研基金资助项目(23091)
关键词
特征河长
计算方法
断面最大水深
半经验
characteristic river length （CRL）
calculation method
maximum sectional water depth
semiexperience
