GB/T51238-2018：岩溶地区建筑地基基础技术标准

GBT51238-2018······1

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······13

3 基本规定······15

4 勘察与评价······17

4.1 一般规定······17

4.2 红黏土地基······18

4.3 岩溶地基······21

4.4 地下水······25

5 地基计算和基础设计······28

5.1 一般规定······28

5.2 地基稳定性计算······29

5.3 地基基础设计······32

5.4 抗浮设计······34

5.5 基坑工程设计······35

6 岩溶地基处理与施工······38

6.1 一般规定······38

6.2 充填法······39

6.3 跨越法······40

6.4 桩基法······41

6.5 高压喷射注浆法······41

6.6 褥垫层法······43

6.7 其他处理方法······43

7 检验与监测······45

7.1 一般规定······45

7.2 检验······46

7.3 监测······47

附录A 红黏土、石芽、溶蚀、溶洞分类表······50

附录B 石芽地基或基岩的稳定计算······53

附录C 溶洞的稳定计算······55

附录D 泡沫轻质土充填处理的配合比······58

本标准用词说明······60

引用标准名录······61

附: 条文说明······63

1 总则······66

2 术语和符号······67

2.1 术语······67

3 基本规定······68

4 勘察与评价······71

4.1 一般规定······71

4.2 红黏土地基······71

4.3 岩溶地基······73

4.4 地下水······78

5 地基计算和基础设计······81

5.1 一般规定······81

5.2 地基稳定性计算······82

5.3 地基基础设计······82

5.4 抗浮设计······84

5.5 基坑工程设计······85

6 岩溶地基处理与施工······89

6.1 一般规定······89

6.2 充填法······89

6.3 跨越法······90

6.4 桩基法······90

6.5 高压喷射注浆法······91

6.6 褥垫层法······91

6.7 其他处理方法······92

7 检验与监测······93

7.1 一般规定······93

7.2 检验······93

7.3 监测······94