GB51222-2017：城镇内涝防治技术规范

目录······1

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······14

3 城镇内涝防治系统······16

3.1 一般规定······16

3.2 技术要求······17

3.3 雨水量······18

4 源头减排设施······20

4.1 一般规定······20

4.2 渗透设施······22

4.3 转输设施······26

4.4 调蓄设施······27

5 排水管渠设施······29

5.1 一般规定······29

5.2 管渠系统······29

5.3 管渠调蓄设施······32

6 排涝除险设施······33

6.1 一般规定······33

6.2 城镇水体······33

6.3 调蓄设施······34

6.4 行泄通道······35

7 运行维护······37

7.1 一般规定······37

7.2 日常维护······37

7.3 应急管理······38

附录A 内涝防治设计报告······40

附录B 内涝防治设计校核······42

本规范用词说明······45

引用标准名录······46

附：条文说明······47

1 总则······50

3 城镇内涝防治系统······52

3.1 一般规定······52

3.2 技术要求······55

3.3 雨水量······57

4 源头减排设施······62

4.1 一般规定······62

4.2 渗透设施······65

4.3 转输设施······70

4.4 调蓄设施······71

5 排水管渠设施······73

5.1 一般规定······73

5.2 管渠系统······75

5.3 管渠调蓄设施······77

6 排涝除险设施······78

6.1 一般规定······78

6.2 城镇水体······79

6.3 调蓄设施······81

6.4 行泄通道······82

7 运行维护······84

7.1 一般规定······84

7.2 日常维护······84

7.3 应急管理······85

附录A 内涝防治设计报告······87

附录B 内涝防治设计校核······88