摘要
Abstract
To improve the flood control system of small and medium-sized rivers in hilly areas,enhance the flood-carrying capacity of river channels,and protect the lives and property of people along the riverbanks,this study took the Quejiafan-Zhangxingdi of the Huangwei River in Yuexi County as an example.Based on the current conditions and existing problems of the river section,the indirect method was used to estimate the design flood,and the HEC-RAS software was applied to determine the design water level.Comprehensive control measures were proposed,including slope and bank protection,river dredging,demolition and reconstruction of structures,and the establishment of a monitoring and early warning service platform.The results showed that the calculated flood levels were generally consistent with actual conditions.After the implementation of the control measures,the flow velocity of the Huangwei river decreased,the flood-carrying capacity improved,and the cross-sectional water level was reduced.The HEC-RAS software proves to be highly applicable for determining design water levels in river channels of hilly areas,and the proposed control measures can serve as a reference for similar small and medium-sized rivers.关键词
山丘区中小河流/水文分析/HEC-RAS软件/工程措施/非工程措施Key words
small and medium-sized rivers in hilly areas/hydrological analysis/HEC-RAS software/engineering measures/non-structural measures分类
建筑与水利
