本文介绍了一种城市污水管道设计的简化方法——可行管径系列曲线法。其特点是:对某一特定设计流量的管道系统先选择满足管段内水流速度及充满度等水力条件的一系列管径,再通过技术方案比较来确定合理的管径及相应的埋设坡度。最后通过实例对该方法的应用作了说明。 This article describes a simplified method for the design of urban sewage pipelines - a series of curve methods for feasible pipe diameters. Its characteristics are: First select a series of pipe diameters satisfying the hydraulic conditions such as water velocity and fullness in the pipe section for a certain design flow pipe system, and then determine the reasonable pipe diameter and the corresponding slope by comparing the technical solutions. Finally, the application of this method is illustrated by an example.