GB/T 20203-2006农田低压管道输水灌溉工程技术规范.pdf

ICS93.160 P 57 谓黔 中 华 人 民 共 和 国 国 家 标 准 GB/T20203-2006 农田低压管道输水灌溉工程技术规范 Technicalspecificationforirrigationprojects withlowpressurepipeconveyance 2006-02-24发布 2006-07-01实施 中华人民共和国国家质量监督检验检疫总局 发 布 中 国 国家 标 准 化 管 理 委 员 会 GB/T 20203-2006 目 次 前 言 ··················································································，·····························…… m 1 范围 ···············································································································…… 1 2 规范性引用文件 ·······································，························································…… 1 3 术语和定义 ························································································，···········…… 1 4 工程规划 ···································································，·································…… 2 4.1 规划原则 ··········································，··································……，…… 2 4.2 主要技术参数 ···································································.·.············…… 3 4.3 水量供需平衡分析 ········································································，，················…… 3 4.4管道系统布置与畦沟灌水要素 .·3 4.5 规划成果 ····································································································…… 4 5 工程设计 ·········································································································…… 5 5.1 设计流量 ·····································································································…… 5 5.2 设计水头 ·······························································，································