GB50400-2016：建筑与小区雨水控制及利用工程技术规范

本规范的主要技术内容是:1.总则；2.术语和符号；3.水量与水质；4.雨水控制及利用系统设置；5.雨水收集与排除；6.雨水入渗；7.雨水储存与回用；8.水质处理；9.调蓄排放；10.施工及验收；11.竣工验收；12.运行管理。

GB50400-2016······1

1总则······12

2术语和符号······13

2.1术语······13

2.2符号······15

3水量与水质······17

3.1降雨量和雨水水质······17

3.2雨水资源化利用量和水质······18

4雨水控制及利用系统设置······21

4.1一般规定······21

4.2系统选型······22

4.3系统设施计算······23

5雨水收集与排除······28

5.1屋面雨水收集······28

5.2硬化地面雨水收集······29

5.3雨水弃流······29

5.4雨水排除······30

6雨水入渗······32

6.1一般规定······32

6.2渗透设施······33

7雨水储存与回用······37

7.1一般规定······37

7.2储存设施······37

7.3雨水回用供水系统······39

7.4系统控制······40

8水质处理······41

8.1处理工艺······41

8.2处理设施······42

8.3雨水处理站······43

9调蓄排放······44

10施工及验收······46

10.1一般规定······46

10.2埋地渗透设施······46

10.3透水地面······47

10.4拼装组合水池······48

10.5管道敷设······51

10.6设备安装······51

11竣工验收······53

11.1水压试验······53

11.2验收······53

12运行管理······55

附录A全国各大城市降雨量资料······57

本规范用词说明······64

引用标准名录······65

附：条文说明······66

1总则······70

2术语和符号······75

2.1术语······75

3水量与水质······76

3.1降雨量和雨水水质······76

3.2雨水资源化利用量和水质······85

4雨水控制及利用系统设置······93

4.1一般规定······93

4.2系统选型······99

4.3系统设施计算······103

5雨水收集与排除······112

5.1屋面雨水收集······112

5.2硬化地面雨水收集······114

5.3雨水弃流······115

5.4雨水排除······118

6雨水入渗······121

6.1一般规定······121

6.2渗透设施······122

7雨水储存与回用······131

7.1一般规定······131

7.2储存设施······132

7.3雨水回用供水系统······137

7.4系统控制······141

8水质处理······142

8.1处理工艺······142

8.2处理设施······143

8.3雨水处理站······144

9调蓄排放······146

10施工及验收······148

10.1一般规定······148

10.2埋地渗透设施······148

l0.3透水地面······150

10.5管道敷设······151

10.6设备安装······151

11竣工验收······152

11.1水压试验······152

11.2验收······152

12运行管理······154