随机供水条件下机压微灌干管管网优化设计研究  

Study on Optimal Design of Micro⁃Irrigation Main Pipe Network Under Stochastic Irrigation Conditions

作　　者：马朋辉 苏晓飞 王净 刘怀宇 林平 MA Penghui;SU Xiaofei;WANG Jing;LIU Huaiyu;LIN Ping(Yellow River Institute of Hydraulic Research,YRCC,Zhengzhou 450003,China;Henan Engineering Research Center of Rural Water Environment Improvement,Zhengzhou 450003,China;Henan Key Laboratory of Ecological Environment Protection and Restoration of the Yellow River Basin,Zhengzhou 450003,China;Hetao Irrigation Area Water Conservancy Development Center of Inner Mongolia,Bayannur 015200,China)

机构地区：[1]黄河水利委员会黄河水利科学研究院,河南郑州450003 [2]河南省农村水环境治理工程技术研究中心,河南郑州450003 [3]河南省黄河流域生态环境保护与修复重点实验室,河南郑州450003 [4]内蒙古河套灌区水利发展中心,内蒙古巴彦淖尔015200

出　　处：《人民黄河》2023年第8期32-36,53,共6页Yellow River

基　　金：国家自然科学基金资助项目(51809105);水利部重大科技项目(SKR-2022020);黄河水利科学研究院科技发展基金专项(HKF202316);中央级公益性科研院所基本科研业项目(HKY-JBYW-2023-26);黄科院引黄灌溉工程技术研究中心科技发展基金资助项目(2022GGZX-FZJJ002)。

摘　　要：以往对微灌干管管网的优化研究多是在管网布置形式已定的条件下进行管径的选择,且多为续灌或轮灌条件下干管管网的优化,对于随机供水条件下微灌干管管网的优化并不适用。提出了随机供水条件下微灌干管管网布置与管径同步优化方法,以单位面积年费用最低为目标函数,考虑节点压力、管径、流速等约束条件,建立了随机供水条件下微灌干管管网布置与管径同步优化数学模型,并给出了基于遗传算法的模型求解方法。实例计算结果表明,以控制面积最大为目标的毛管双向布置灌水小区优化模型优化结果为基础进行微灌干管管网优化时,得到的最低单位面积年费用为964.24元/(hm2·a),对应的干管管网控制面积为93.40 hm2。In the past,the optimization study of micro⁃irrigation main pipe network was mostly based on the selection of pipe diameter under the condition of fixed pipe network layout,and most of them were under the condition of continuous irrigation or rotation irrigation,which was not applicable to the optimization of micro⁃irrigation main pipe network under the condition of random water supply.The study put forward a synchronous optimization method of micro⁃irrigation main pipe network layout and pipe diameter under the condition of random water supply,and took the minimum annual cost per unit area as the objective function,and took node pressure,pipe diameter and flow rate as the con⁃straints,established a mathematical model of synchronous optimization of micro⁃irrigation main pipe network layout and pipe diameter under the condition of random water supply,and gave a model solution method based on genetic algorithm.The calculation results of the example show that the minimum annual cost per unit area is 964.24 Yuan/(hm2·a),and the corresponding control area of the main pipe network is 93.40 hm2 when optimizing the main pipe network of micro⁃irrigation based on the optimization results of the optimization model of the subunit with paired laterals as the goal.

关 键 词：微灌干管管网 随机供水 遗传算法 同步优化 

分 类 号：S274.2[农业科学—农业水土工程] TV882.1[农业科学—农业工程]