DB62/T3242-2023······1

1 總則······10

2 術語和符號······11

2.1 術語······11

2.2 符號······13

3 基本規定······16

3.1 一般規定······16

3.2 基本資料······18

3.3 樁的布置······20

3.4 特殊條件下的樁基······21

3.5 耐久性規定······24

4 樁基構造······26

4.1 基樁構造······26

4.2 承臺構造······28

5 樁基計算······29

5.1 樁頂作用效應計算······29

5.2 樁基豎向承載力計算······30

5.3 單樁豎向極限承載力計算······31

5.4 特殊條件下樁基豎向承載力計算······35

5.5 樁基豎向抗拔承載力計算······39

5.6 樁基抗震計算······41

5.7 樁基沉降計算······43

5.8 樁基水平承載力計算······44

5.9 樁身承載力計算······47

5.10 承臺計算······48

6 樁基施工······49

6.1 一般規定······49

6.2 樁基施工······50

6.3 安全施工······54

6.4 環境保護······55

7 樁基工程質量檢驗和驗收······57

7.1 一般規定······57

7.2 施工前檢驗······57

7.3 施工檢驗······58

7.4 施工后檢驗······58

7.5 驗收資料······59

附錄A 地螺絲微型鋼管樁類型和適用巖土條件······61

附錄B 地螺絲微型鋼管樁樁身構造圖······62

附錄C 樁頂部常用連接方式圖······63

附錄D 地螺絲微型鋼管樁尺寸規格表······64

附錄E 樁的極限側阻力和端阻力標準值······66

附錄F 地螺絲微型鋼管樁產品檢驗記錄表······69

附錄G 地螺絲微型鋼管樁施工記錄表······70

本標準用詞說明······71

引用標準名錄······72

附：條文說明······74

1 總則······78

2 術語和符號······80

3 基本規定······81

3.1 一般規定······81

3.2 基本資料······84

3.3 樁的布置······84

3.4 特殊條件下的樁基······84

3.5 耐久性規定······87

4 樁基構造······89

4.1 基樁構造······89

5 樁基計算······91

5.1 樁頂作用效應計算······91

5.2 樁基豎向承載力計算······91

5.3 單樁豎向極限承載力計算······91

5.4 特殊條件下樁基豎向承載力計算······94

5.5 樁基豎向抗拔承載力計算······96

5.6 樁基抗震計算······97

5.7 樁基沉降計算······97

5.8 樁基水平承載力計算······98

5.9 樁身承載力計算······98

5.10 承臺計算······99

6 樁基施工······100

6.1 一般規定······100

6.2 樁基施工······102

6.3 安全施工······104

6.4 環境保護······104

7 樁基工程質量檢驗和驗收······105

7.1 一般規定······105

7.2 施工前檢驗······105

7.3 施工檢驗······105

7.4 施工后檢驗······106

7.5 驗收資料······106