非一致性条件下城市设计洪水的计算方法  

Calculation Method of Design Flood in Urban Area Under Non-Consistency Conditions

作　　者：李显鸿[1] 刘晋[2] 柏平[1] 王军[3] 

机构地区：[1]云南省水文水资源局昆明分局,云南昆明650051 [2]水利部水文局,北京100053 [3]河海大学水文水资源学院,江苏南京210098

出　　处：《人民黄河》2015年第4期58-61,共4页Yellow River

基　　金：国家自然科学基金青年基金资助项目(51109054)

摘　　要：在分析城市化后产流变化的基础上,可采用平均洪量模数增量修正设计洪峰频率曲线的均值,进而推算城市化后的设计洪峰流量,以宝象河流域为实例进行了验证。结果表明:该算法具有合理性,以实测洪水资料为基础进行的非一致性条件下的设计洪水计算结果比基于设计暴雨推求设计洪水的误差更小。On the basis of analyzing the change of runoff-yield,the design flood peak discharge was deduced by adopting the average flood modulus to modify the parameter of P-Ⅲdistribution function,meanwhile,Baoxiang River basin was taken as an example to verify the ap-proach proposed in the paper. The results show that the modified approach is reasonable and more accurate under the data condition of non-consistency,furthermore,the approach is suited to design flood calculation in urbanization region.

关 键 词：设计洪水 非一致性 下垫面 城市化 

分 类 号：P333[天文地球—水文科学]