内容简介
编 号∶DB11/T 1872-2021给水与排水工程施工安全技术规程
Safety technical specification for construction of water supply and sewerage works
2021-10-01 实施
2021-06一28发布
目 次
1 总 则 ................................................................................ 1
2 术 语 ................................................................................ 2
3 基本规定 .............................................................................. 3
3.1 一般规定 ........................................................................ 3
3.2 施工临时设施 .................................................................... 4
3.3 安全防护设施 .................................................................... 5
3.4 物资准备 ........................................................................ 7
4 地下水控制 ............................................................................ 8
4.1 一般规定 ........................................................................ 8
4.2 降排水 .......................................................................... 8
5 土方工程 .............................................................................. 9
5.1 一般规定 ........................................................................ 9
5.2 沟槽、基坑开挖 .................................................................. 9
5.3 土方堆运 ....................................................................... 10
5.4 管道交叉处理 ................................................................... 10
5.5 沟槽、基坑回填 ................................................................. 10
6 沟槽、基坑支护 ....................................................................... 11
6.1 一般规定 ....................................................................... 11
6.2 钢木支护 ....................................................................... 11
6.3 土钉墙支护 ..................................................................... 14
7 地基与基础 ........................................................................... 16
7.1 一般规定 ....................................................................... 16
7.2 地基处理 ....................................................................... 16
7.3 灌注桩基础 ..................................................................... 17
7.4 沉入桩基础 ..................................................................... 17
7.5 扩大基础 ....................................................................... 17
8 管材吊装与运输 ....................................................................... 18
8.1 运 输 ........................................................................ 18
8.2 码 放 ....................................................................... 18
8.3 吊 装 ....................................................................... 19
9 排水(重力流)管道安装与铺设 ........................................................... 22
9.1 一般规定 ....................................................................... 22
9.2 下管与稳管 ..................................................................... 22
9.3 管道接口 ....................................................................... 22
9.4 管道勾头 ....................................................................... 23
10 给水(压力流)管道安装与铺设 .......................................................... 24
10.1 一般规定 ...................................................................... 24
10.2 下管与稳管 .................................................................... 24
10.3 钢管焊接与切割 ................................................................ 25
10.4 管道接口 ..................................................................... 311
10.5 管道勾头 ...................................................................... 32
10.6 附件安装 ...................................................................... 32
10.7 过河管道 ...................................................................... 33
11 管道附属构筑物 ...................................................................... 35
11.1 一般规定 ...................................................................... 35
11.2 检查井、闸室 .................................................................. 35
11.3 止推墩、翼墙、出水口 .......................................................... 35
12 防腐与防水 .......................................................................... 36
12.1 一般规定 ...................................................................... 36
12.2 钢管除锈 ...................................................................... 36
12.3 钢管聚合物防腐 ................................................................ 36
12.4 钢管沥青纤维布防腐 ............................................................ 37
12.5 钢管水泥砂浆内防腐 ............................................................ 37
12.6 钢管阴极保护(牺牲阳极)防腐 .................................................... 38
12.7 涂料防腐与防水 ................................................................ 38
12.8 构筑物防水与防腐 .............................................................. 38
13 管道强度、严密性试验与冲洗消毒 ...................................................... 40
13.1 一般规定 ...................................................................... 40
13.2 排水（重力流）管道闭水试验 .................................................... 40
13.3 排水（重力流）管道闭气试验 .................................................... 40
13.4 给水（压力流）管道水压试验 .................................................... 40
13.5 给水管道冲洗、消毒 ............................................................ 41
14 沉 井 .............................................................................. 42
14.1 一般规定 ...................................................................... 42
14.2 沉井制作 ...................................................................... 42
14.3 沉井下沉 ...................................................................... 43
14.4 沉井封底与填充 ................................................................ 44
15 现浇钢筋混凝土水池与管渠 ............................................................ 45
15.1 一般规定 ...................................................................... 45