摘要
根据我国给水排水设计规范，本文提出了雨水管道水力和高程设计计算优化选择的新方法，并研制了相应的结构化程序．该程序除了结构清晰，易于阅读和维护之外，还具有良好的功能．它能在满足设计规范等所有约束条件下，确定尽可能小的流速和合适的管径；在地面坡度较大时，还能通过人机对话方式，根据下游管段所处地形等情况，或是充分利用坡度减小管径，或是恰当地确定跌水位置和高度并不增大流速，从而最大限度地降低管道的工程造价．
On the basis of the Chinese water supply and sewage design criteria, this paper putsfoward a new method which makes optimization choice of rain- water pipe hydromatic andaltitude design,and devises a corresponding structural program. The program is clear indesign and easy to read and maintain.Moreover,it is able to determine as small flowrate as possible and proper pipe diameter under the condition meeting the deSign criteria.When the earth surface is in deeper slope condition,the cost of project can be loweredtO the largest extent by man- machine interaction.This may be realized through eitherreducing the pipe diameter or properly determining water drop location and altitude withoutincreasing flow rate.
