【摘要】 本文采用正交试验法处理环状管网优化问题，寻优范围广泛，优化结果直接为商用管径值，避免了数值优化方法中局部寻优和优化后再离散管径这两个不合理成分。方法简单、实用，尤其更适于商用管径系列有限的中、小型管道工程更多还原

【Abstract】 This paper is for resolving the optimation problem of looped pipe networks using the orthogonal test method.In the paper there is a wide range of pipe diameter for optimation and the optimation result,the size of the pipe diameter,is presented in the commodity size.It avoided the two unreasonable respects in the traditional methods:one is that the optimation is in a limited range,the other is that the dissociation of the pipe diameter has to be done only after the optimal process is finished.This method is simple and practical.Especially it can be well in the small and medium networks which have a limited recommend series of the pipe diameter.更多还原