GB/T51130-2016：沉井与气压沉箱施工规范

本规范共分7章,主要技术内容包括：总则、术语和符号、基本规定、计算与验算、制作与下沉、质量控制与验收、监测。

GBT51130-2016······1

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······14

3 基本规定······17

4 计算与验算······19

4.1 一般规定······19

4.2 混凝土垫层及砂垫层······19

4.3 侧阻力······21

4.4 下沉系数及接高稳定性······23

4.5 封底混凝土······24

4.6 水域沉井与沉箱······26

5 制作与下沉······30

5.1 一般规定······30

5.2 垫层施工······31

5.3 沉井与气压沉箱制作······32

5.4 沉井下沉······33

5.5 气压沉箱下沉······35

5.6 沉井封底······36

5.7 气压沉箱封底······37

5.8 水域沉井与沉箱施工······38

6 质量控制与验收······40

6.1 砂垫层······40

6.2 制作······40

6.3 下沉及封底······42

7 监测······45

7.1 一般规定······45

7.2 监测与报警······46

7.3 监测报告······47

本规范用词说明······49

引用标准名录······50

附:条文说明······51

1 总则······54

3 基本规定······55

4 计算与验算······57

4.1 一般规定······57

4.2 混凝土垫层及砂垫层······58

4.3 侧阻力······58

4.4 下沉系数及接高稳定性······58

4.5 封底混凝土······59

4.6 水域沉井与沉箱······61

5 制作与下沉······62

5.1 一般规定······62

5.2 垫层施工······64

5.3 沉井与气压沉箱制作······64

5.4 沉井下沉······65

5.5 气压沉箱下沉······68

5.6 沉井封底······73

5.7 气压沉箱封底······73

5.8 水域沉井与沉箱施工······74

6 质量控制与验收······75

6.1 砂垫层······75

6.2 制作······75

6.3 下沉及封底······75

7 监测······76

7.1 一般规定······76

7.2 监测与报警······76