【摘要】 根据北京城市化水平（下垫面情况及排水条件）、城市汇流特点（雨水管道及明渠排水），通过用多点入流汇流计算法模拟实测洪水过程线，分析了北京城市河道的汇流特点与规律，初步提出了一种适合于北京城市洪水计算的方法，为城市防洪排水工程规划、设计提供了依据更多还原

【Abstract】 In this paper,the law of the flow collection and confluence of Beijing rivers are discussed with the multi-point inflow and confluence calculation method according to the urbanization level in Beijing (underlying surface status and drainage conditions) and the urban confluence characteristics (rain_water pipeline and river channel control status).Also an urban flood calculation method is put forward,which is fit for Beijing area and could play an important role in the antiflood engineering planning and design.更多还原