[1]王文亮,田晓霞,郭纯园,等.推理公式法与运动波法暴雨径流计算一致性探讨[J].中国给水排水,2026,42(8):8-15.
WANGWenliang,TIANXiaoxia,GUOChwenyuan,et al.Consistency of Rational Method and Kinematic Wave Method for Storm Hydrograph Calculation[J].China Water & Wastewater,2026,42(8):8-15.
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WANGWenliang,TIANXiaoxia,GUOChwenyuan,et al.Consistency of Rational Method and Kinematic Wave Method for Storm Hydrograph Calculation[J].China Water & Wastewater,2026,42(8):8-15.
推理公式法与运动波法暴雨径流计算一致性探讨
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第42卷
期数:
2026年第8期
页码:
8-15
栏目:
出版日期:
2026-04-17
- Title:
- Consistency of Rational Method and Kinematic Wave Method for Storm Hydrograph Calculation
- Keywords:
- rational method; kinematic wave method; storm hydrograph calculation; peak flow; runoff hydrograph
- 摘要:
- 推理公式法与暴雨洪水管理模型(SWMM)运动波法是国内外广泛采用的径流计算方法,对于城市小流域暴雨径流,如何确保两种方法计算结果的一致性,是亟待解决的问题。本研究首先给出基于暴雨强度公式的设计暴雨雨型推求方法,明确集水时间、径流系数、等效矩形集水区宽度和坡度的计算方式,进而提出采用推理公式计算径流过程线的方法。实测数据与特定形状集水区的计算验证结果表明,推理公式法和运动波法在径流过程线计算上具有较好的一致性,峰值流量的计算偏差小于10%。进一步分析表明,降雨条件、集水时间、降雨损失的一致性是保障计算一致性的必要条件;而较小的集水区面积则是实现一致性的充分条件。
- Abstract:
- The rational method and the kinematic wave method (as implemented in SWMM) are widely used for runoff calculations worldwide. For stormwater runoff in small urban catchments, ensuring consistency between two methods remains a key challenge. This study first presents a method for deriving design storm hyetographs based on the rainfall intensity formula, and defines consistent approaches for estimating time of concentration, runoff coefficient, equivalent rectangular catchment width, and slope. A method for calculating runoff hydrographs using the rational method is then proposed. Validation using field data and the catchment of idealized shape shows good agreement between the rational method and the kinematic wave method, with peak flow deviations below 10%. Further analysis indicates that consistency in design rainfall, time of concentration, and rainfall loss is a necessary condition for ensuring computational consistency, while a small catchment area serves as a sufficient condition.
更新日期/Last Update:
2026-04-17