内容简介
DB/T 29-279-2020 备案号∶J15381-2020天津市城市轨道交通结构安全保护技术规程
Technical specification for protection of urban rail transit structures in Tianjin
2020-10-16 发布
2020-12-01 实施
目 次
1 总则 ............................................................................................ 1
2 术语 ............................................................................................ 2
3 基本规定 .................................................................................... 5
3.1 一般规定 ........................................................................................... 5
3.2 安全控制 ........................................................................................... 6
4 安全控制标准 .......................................................................... 14
5 外部基坑工程 .......................................................................... 15
6 穿越工程 .................................................................................. 17
6.1 一般规定 ......................................................................................... 17
6.2 盾构法 ............................................................................................. 18
6.3 明挖法 ............................................................................................. 19
6.4 顶管法 ............................................................................................. 20
6.5 地面上跨 ......................................................................................... 20
6.6 拉管法 ............................................................................................. 21
7 其他工程 .................................................................................. 22
7.1 一般规定 ......................................................................................... 22
7.2 爆破作业 ......................................................................................... 22
7.3 桩基础工程 ..................................................................................... 23
7.4 地下水作业 ..................................................................................... 24
7.5 浅基础工程 ..................................................................................... 24
8 检测 .......................................................................................... 26
9 安全评估 .................................................................................. 28
10 监测 ........................................................................................ 30
10.1 一般规定 ....................................................................................... 30
10.2 监测项目和监测频率 ................................................................... 30
10.3 监测预警 ....................................................................................... 35
11 加固与修复 ............................................................................ 37
附录 A 隧道上方卸荷比、增荷比计算 ..................................... 39
本规程用词说明 ............................................................................ 42
引用标准名录 ................................................................................ 43
条文说明 ........................................................................................ 45