内容简介
DB13 (J)/T 8340-2020备案号∶ J15096-2020
地下管网球墨铸铁排水管道设计标准
Design code of ductile iron pipelines for wastewater underground （高质量发展系列标准-1）
2020-03-07 发布
2020-06-01 实施
目次
1 总则·········································································1
2 术语和符号······························································· 2
2.1 术语·································································· 2
2.2 符号·································································· 3
3 基本规定·································································· 8
4 管材·········································································9
4.1 一般规定·····························································9
4.2 壁厚和允许压力··················································· 10
4.3 密封试验··························································· 13
4.4 外防腐与内防腐··················································· 14
4.5 尺寸·································································15
4.6 材料性能··························································· 16
5 管道设计································································· 18
5.1 一般规定··························································· 18
5.2 水力计算··························································· 19
6 管线结构设计···························································21
6.1 一般设计规定······················································ 21
6.2 管道结构上的作用·················································22
6.3 管道的强度计算··················································· 24
6.4 管道的稳定验算··················································· 26
6.5 管道变形验算······················································ 27
6.6 明装管道结构设计·················································28
6.7 基本构造规定······················································ 32
7 功能性试验······························································ 34
7.1 一般规定··························································· 34
7.2 压力管道的水压试验·············································· 35
7.3 无压管道的水压试验·············································· 38
附录 A 球墨铸铁一体式检查井······································· 40
附录B 球墨铸铁管道在各种荷载作用下的最大弯矩系数和竖向
变形系数························································· 47
附录 C 管侧土的综合变形模量······································· 48
附录 D 地面车辆荷载对管道作用标准值的计算方法············50
附录 E 注水法试验·······················································53
附录 F闭水法试验·······················································55
本标准用词说明···························································· 57
引用标准名录······························································· 58
附：条文说明······························································· 61