GB/T 20203-2006 农田低压管道输水灌溉工程技术规范

ICS93.160

P57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/T20203-2006

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·······························································，·································，···……5

5.3水头损失······················································，·························，，···················……6

5.4管径与管道工作压力················································，········。···························…·…7

5.5水锤压力·····················································，·············································……7

5.6设计成果················································································，·····················……7

6水泵选型及动力机配套·····································································，··············…·…8

6.1水泵选型····················································，························，，····················……8

6.2动力机配套········································，·······················································……，·，8

7管材与连接件···································································································……9

7.1一般规定··································································································……9

7.2塑料管与连接件··················································································，，········……9

7.3混凝土管与连接件··························································，·························，····……10

8附属设施···············································································，……·‘············，···……10

8.1一般规定····································································································……10

8.2给水栓·······································································································……10

8.3安全保护装置··································································..·····.·..……，..…，，，.10

8.4量水设备·····································································································……11

8.5配水控制装置·············，······························，··············································……，.…11

8.6交叉建筑物··············································，···············································.·..……11

8.7镇墩··········································，···················，·······，····································……11

9工程施工与设备安装······························，···························································……n

9.1一般规定················································，································，····················……11

9.2施工准备································································································，·····，··…11

9.3管槽开挖·····································································································……12

9.4管道系统安装········································································，······.···········……，二12

9.5试水回填·······································，····························，·····.···········……12

T

GB/T20203-2006

1。工程验收·········，·························……，，..……

10.1一般规定··········，，·······，，······················，.·……

10.2验收内容·········，·················一，，···..……，...……

n运行与维护··，················.···.·..……，.‘卜...……

11.1一般规定·····，，，····‘·…，·……

11.2水源工程的维护管理·················，···············……二，::

一

11.3设备的使用和维护········，，···············……，····……

一

附录A(资料性附录)地埋管道径向变形量计算方法···……

GB/T20203-2006

前言

本标准是将正在编制的国家标准农《田低压输水管道质量检验评定规范》与经过扩充修改后的水利

行业标准《低压管道输水灌溉工程技术规范(井灌区部分))(SL/T153-1995)合二为一而制定的。

本标准的附录A为资料性附录。

本标准由水利部提出并归口。

本标准起草单位:中国水利水电科学研究院、上海市水利排灌管理处、山东省水利科学研究院、福

建省水利建设技术服务中心、扬州大学。

本标准主要起草人:刘群昌、丁昆仑、张国祥、刘晓涛、桑保良高昊曼王晖、王晓玲、高占义、许迪、

余玲、秦德刚、李永顺、陈文清、周明耀、张兰亭。

GB/T20203-2006

农田低压管道输水灌溉工程技术规范

范围

本标准规定了农田低压管道输水灌溉工程的规划、设计、管材与设备的选择和安装、工程施工、验

收、运行及维护等的技术要求。

本标准界定了农田低压管道输水灌溉工程使用的术语

本标准适用于井灌区以及泵站扬水灌区和丘陵山区自流灌区中，每个系统控制面积不大于80h.'

的农田低压管道输水灌溉工程的建设与管理。系统控制面积大于80hm“的工程可参照执行。

2规范性引用文件

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有

的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究

是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。

GB/T1040塑料拉伸性能试验方法

GB/T3039石棉水泥输水管及其接头

GB4084自应力混凝土输水管

GB5084农田灌溉水质标准

GB/T10002.1给水用硬聚氯乙烯(PVC-U)管材

GB/丁11837混凝土管用混凝土抗压强度试验方法

GB/T13663给水用聚乙烯(PE)管材

GB/T13664低压输水灌溉用薄壁硬聚氯乙烯(PVC-U)管材

GB50288灌溉与排水工程设计规范

JB/T8512输水用涂塑软管

JC/T743石棉水泥输水、输煤气管道铺设指南

QB/T1130塑料直角撕裂性能试验方法

QB/T1916硬聚氯乙烯((PVC-U)双壁波纹管材

SI.255泵站技术管理规程

SL256-200。机井技术规范

术语和定义

下列术语和定义适用于本标准。

低压管道输水灌溉工程irrigationprojectswithlowpressurepipeconveyance

以管道低压输水进行地面灌溉的工程。其管道工作压力一般不超过。4MPao

3.2

管道系统进口inletofpipelinesystem

管道输水系统与水泵出水管出口的连接处，或自压管道输水系统的进水处。

3.3

地面移动管道groundportablepipeorhose

与给水栓连接，代替田间输水垄沟并可拆装、移动，轮流使用于不同位置的灌溉输水管道。

GB/T20203-2006

3.4

管道系统水利用系数wateruseefficiencyofpipelinesystem

设计工况下，固定管道系统出口流量与进口流量的比值

3.5

多水源汇流管道系统multi-flowconvergedsystem

两个及以上的水源同时以压力管流方式汇流的管道系统。

3.6

给水栓hydrant

向地面管道或田间毛渠、畦、沟供水的控制装置。

3.7

限压通气管pressureregulationtube

管内水面可随管内压力而波动，过高溢流，过低补气，具有限制管内压力过高和防止负压的功能，使

管道与大气连通的竖管

3.8

进排气阀airreliefandvacuum-breakvalve

充水时排除管内空气，充满时自动关闭，负压时能自动补气的阀门。

3.9

安全阀pressurereliefvalve

管内压力超出设定值时，能迅速开启、排出管中水流，从而限制管内压力过高，保证管道安全的

阀门。

3.10

泄水阀drainvalve

排空管道系统内存水的阀门

3.11

薄膜管plasticmembranepipe

与给水栓连接，向田间毛渠、畦、沟供水的塑料软管。

3.12

薄膜闸管plasticmembranegatedpipe

与给水栓连接，沿管长装有多个出水闸门的薄膜管。

4工程规划

4.1规划原则

4.1.1应收集掌握规划区地理位置、水文气象、水文地质、土壤、农业生产、社会经济以及地形地貌、工

程现状等资料;了解当地水利工程运行管理水平;听取用户对管线布置、运行管理等方面的意愿。

4.1.2规划应在当地农业区划和水资源评价的基础上进行;应与农田水利基本建设总体规划相适应，

做到因地制宜、统筹兼顾、全面规划、分期实施。

4.1.3低压管道输水灌溉工程建设，应将水源、泵站、输水管道系统及田间灌排工程作为一个整体统一

规划，做到技术先进、经济合理、效益显著。

4.1.4规划中应进行多方案的技术经济比较，选择投资省、效益高、节水、节能、省地及便于管理的方

案，并保证水资源可持续利用山区、丘陵地区宜利用地形落差自压输水。

4.飞5对特别重要的管道输水灌溉工程，在可能给环境造成不利影响时，应进行环境评价。

4.1.6水源水质应符合GB5084的规定。

4.1.7采用低压管道输水灌溉工程时，其机井应符合SL256-2000中4.2.10的规定;泵站的设备完

GB/T20203-2006

好率应符合SL255的规定。

4.1.8规划应与道路、林带、供电、通信、生活供水等系统线