行蓄洪区受灾面积的简便水文计算方法初探

On Simplified Calculation Method of Flood-stricken Acreage in Floodplain

主要运用工程水文学的理论探讨行洪区在n年一遇暴雨时的受涝面积;应用设计洪水过程结合水位Z-库容S曲线、水位Z-面积S曲线推算行洪区现有排涝站工程效益的推求方法,以满足农田水利工程规划设计的需要,为减灾防灾提供技术依据。

Based on the theory of the engneering hydrology, this paper discusses mainly about calculating the largest over-rained area in n years in the floodplain. What more, the method, which evaluates the benefit of the drainage pumping station existing in the floodplain, will be achieved to meet the need of the plan and design of the irrigation and water conservancy project by designing the flood process with the S curve of the storage capacity and area of Z water level.