农田管道输水系统管径选择问题研究  

STUDY ON CHIOCE OF DIAMETER OF PIPE-IRREGATION SYSTEM

作　　者：王仁超[1] 丁俊丽[2] 顾培亮[2] 杭仁兵 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津大学管理学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2000年第3期386-389,共4页Journal of Tianjin University：Science and Technology

基　　金：天津市火炬计划资助项目

摘　　要：目前在农田管道输水系统设计中 ,最优管径的计算常采用给水管道工程管径优化设计的理论和方法 ,而没有考虑轮灌对系统的影响 .本文借鉴给水管道工程计算方法 ,结合农田管道输水系统自身特点 ,引入管网系数 ,提出农田管道输水系统管径优化选择方法 。Pipe irrigation in farmland is an importamnt form to save water at the present in our country.During the design of pipe irrigation system,the designers concern is how to reduce the investment and energy cost.Presently,in the process of designing pipe irrigation system,in order to calculating the optimal diameter,the theory and method of water supplying pipe engineering diameter optimal design are adopted,without considering the influence of altemate irrigation on the system.In this paper,the calculating method of water supplying pipe engineering is used for reference,considering the property of pipe net,introducing the coefficient of pipe net,present a method of optimal choice of pipe diameter in pipe irrigation system.In the end,a case is used to prove the validity of the method.

关 键 词：管径选择 管网系数 农田 管道输水系统 灌溉系统 

分 类 号：S274.5[农业科学—农业水土工程]