JGJ432-2018：建筑工程逆作法技术标准

JGJ432-2018······1

1 总则······11

2 术语······12

3 基本规定······14

4 围护结构······16

4.1 一般规定······16

4.2 地下连续墙······17

4.3 灌住桩排桩······22

4.4 型钢水泥土搅拌墙······24

4.5 咬合式排桩······26

5 竖向支承桩柱······29

5.1 一般规定······29

5.2 设计······30

5.3 施工······32

5.4 检测······35

6 先期地下结构······36

6.1 一般规定······36

6.2 设计······37

6.3 施工······39

7 后期地下结构······42

7.1 一般规定······42

7.2 模板工程······42

7.3 混凝土工程······43

7.4 接缝处理······44

8 上下同步逆作法······45

8.1 一般规定······45

8.2 设计······46

8.3 施工与监控······48

9 地下水控制······49

9.1 一般规定······49

9.2 设计······50

9.3 施工与检测······51

10 土方挖运······55

10.1 一般规定······55

10.2 取土口设置······56

10.3 土方开挖······57

10.4 土方水平与垂直运输······58

11 监测······59

11.1 一般规定······59

11.2 监测项目、测点布置及报警值······59

11.3 监控信息化管理······62

12 施工安全及作业环境控制······64

12.1 一般规定······64

12.2 通风排气······64

12.3 照明及电力设施······66

附录A 逆作法结构连接节点构造······68

本标准用词说明······72

引用标准名录······73

附: 条文说明······75

1 总则······79

3 基本规定······80

4 围护结构······86

4.1 一般规定······86

4.2 地下连续墙······87

4.3 灌住桩徘桩······91

4.4 型钢水泥土搅拌墙······93

4.5 咬合式排桩······102

5 竖向支承桩柱······105

5.1 一般规定······105

5.2 设计······107

5.3 施工······111

5.4 检测······114

6 先期地下结构······116

6.1 一般规定······116

6.2 设计······116

6.3 施工······119

7 后期地下结构······121

7.1 一般规定······121

7.2 模板工程······121

7.3 混凝土工程······121

7.4 接缝处现······121

8 上下同步逆作法······123

8.1 一般规定······123

8.2 设计······124

8.3 施工与监控······124

9 地下水控制······126

9.1 一般规定······126

9.2 设计······127

9.3 施工与检测······129

10 土方挖运······134

10.1 一般规定······134

10.2 取土口设置······134

10.3 土方开挖······135

10.4 土方水平与垂直运输······135

11 监测······136

11.1 一般规定······136

11.2 监测项目、测点布置及报警值······136

11.3 监控信息化管理······139

12 施工安全及作业环境控制······140

12.2 通风排气······140

12.3 照明及电力设施······140

附录A 逆作法结构连接节点构造······142