JGJ476-2019：建筑工程抗浮技术标准

JGJ476-2019······1

1 总则······13

2 术语和符号······14

2.1 术语······14

2.2 符号······16

3 基本规定······21

4 勘察与鉴定······25

4.1 一般规定······25

4.2 勘察······26

4.3 鉴定······30

5 设防水位······33

5.1 一般规定······33

5.2 水位预测······34

5.3 设防水位······36

6 稳定与治理······38

6.1 一般规定······38

6.2 浮力······40

6.3 抗浮力······41

6.4 抗浮稳定······43

6.5 抗浮治理······44

7 设计······47

7.1 一般规定······47

7.2 抗浮板法······51

7.3 压重法······52

7.4 排水限压法、隔水控压法与泄水降压法······54

7.5 锚杆法······58

7.6 锚桩法······68

7.7 既有工程抗浮治理······74

8 施工······77

8.1 一般规定······77

8.2 抗浮板法······78

8.3 压重法······78

8.4 排水限压法、隔水控压法与泄水降压法······78

8.5 锚杆法······79

8.6 锚桩法······82

8.7 既有工程抗浮治理······86

9 检验与验收······88

9.1 一般规定······88

9.2 抗浮板法······89

9.3 排水限压法和泄水降压法······89

9.4 锚杆法······92

9.5 锚桩法······93

9.6 验收······98

10 监测与维护······99

1O.1 一般规定······99

1O.2 锚固构件监测······101

1O.3 地下水监测······102

10.4 排水限压法、隔水控压法和泄水降压法的监测与维护······104

10.5 资料整理······104

附录A 地下水类型与岩土体渗透等级······106

附录B 抗浮构件工作环境类别······108

附录C 水文地质参数试验要点······110

附录D 钢筋腐蚀及混凝土劣化检测要点······118

附录E 抗浮锚杆和抗浮桩性能试验要点······112

附录F 抗浮锚杆防腐做法······130

附录G 抗浮锚杆施工记录······133

附录H 抗浮锚杆验收试验······135

附录J 抗浮桩验收试验······141

本标准用词说明······148

引用标准名录······149

附：条文说明······151

1 总则······155

2 术语和符号······157

2.1 术语······157

3 基本规定······165

4 勘察与鉴定······174

4.1 一般规定······174

4.2 勘察······175

4.3 鉴定······180

5 设防水位······181

5.1 一般规定······181

5.2 水位预测······183

5.3 设防水位······184

6 稳定与治理······188

6.1 一般规定······188

6.2 浮力······189

6.3 抗浮力······193

6.4 抗浮稳定······194

6.5 抗浮治理······195

7 设计······198

7.1 一般规定······198

7.2 抗浮板法······200

7.3 压重法······200

7.4 排水限压法、隔水控压法与泄水降压法······201

7.5 锚杆法······202

7.6 锚桩法······208

7.7 既有工程抗浮治理······208

8 施工······209

8.1 一般规定······209

8.5 锚杆法······209

9 检验与验收······211

9.2 抗浮板法······211

9.3 排水限压法和泄水降压法······211

9.4 锚杆法······212

9.5 锚桩法······212

10 监测与维护······215

10.1 一般规定······215

10.2 锚固构件监测······215

10.5 资料整理······215

附录C 水文地质参数试验要点······216

附录D 钢筋腐蚀及混凝土劣化检测要点······217