JGJ94-2008······1

1 總則······10

2 術語、符號······11

2.1 術語······11

2.2 符號······12

3 基本設計規定······15

3.1 一般規定······15

3.2 基本資料······18

3.3 樁的選型與布置······20

3.4 特殊條件下的樁基······23

3.5 耐久性規定······25

4 樁基構造······27

4.1 基樁構造······27

4.2 承臺構造······31

5 樁基計算······35

5.1 樁頂作用效應計算······35

5.2 樁基豎向承載力計算······36

5.3 單樁豎向極限承載力······39

5.4 特殊條件系樁基豎向承載力驗算······51

5.5 樁基沉降計算······58

5.6 軟土地基減沉復合疏樁基礎······65

5.7 樁基水平承載力和位移計算······67

5.8 樁身承載力與裂縫控制計算······73

5.9 承臺計算······79

6 灌注樁施工······92

6.1 施工準備······92

6.2 一般規定······93

6.3 泥漿護壁成孔灌注樁······95

6.4 長螺旋鉆孔壓灌樁······100

6.5 沉管灌注樁和內夯沉管灌灌注樁······102

6.6 干作業成孔灌注樁······106

6.7 灌注樁后注漿······108

7 混凝土預制樁與鋼樁施工······111

7.1 混凝土預制樁的制作······111

7.2 混凝土預制樁的起吊、運輸和堆放······113

7.3 混凝土預制樁的接樁······114

7.4 錘擊沉樁······115

7.5 靜壓沉樁······118

7.6 鋼樁（鋼管樁、H型樁及其他異型鋼樁）施工······121

8 承臺施工······124

8.1 基坑開挖和回填······124

8.2 鋼筋和混凝土施工······124

9 樁基工程質量檢查和驗收······125

9.1 一般規定······125

9.2 施工前檢驗······125

9.3 施工檢驗······125

9.4 施工后檢驗······126

9.5 基樁及承臺工程驗收資料······127

附錄A 樁型與成樁工藝選擇······129

附錄B 預應力混凝土空心樁基本參數······132

附錄C 考慮承臺（包括地下墻體）、基樁協同工作和土的彈性抗力作用計算受水平荷載的基樁······136

附錄D Boussinesq（布辛奈斯克）解的附加應力系數α、平均附加應力系數α······154

附錄E 樁基等效沉降系ψe計算參數······167

附錄F 考慮樁徑影響的Mindlin（明德林）解應力影響系數······175

附錄G 按倒置彈性地基梁計算砌體墻下條形樁基承臺梁······215

附錄H 錘擊沉樁錘重的選用······218

本規范用詞說明······219

附:條文說明······220

1 總則······224

2 術語、符號······226

2.1 術語······226

2.2 符號······226

3 基本設計規定······227

3.1 一般規定······227

3.2 基本資料······240

3.3 樁的選型與布置······240

3.4 特殊條件下的樁基······244

3.5 耐久性規定······248

4 樁基構造······249

4.1 基樁構造······249

4.2 承臺構造······250

5 樁基計算······255

5.1 樁頂作用效應計算······255

5.2 樁基豎向承載力計算······255

5.3 單樁豎向極限承載力······262

5.4 特殊條件系樁基豎向承載力驗算······274

5.5 樁基沉降計算······280

5.6 軟土地基減沉復合疏樁基礎······298

5.7 樁基水平承載力和位移計算······301

5.8 樁身承載力與裂縫控制計算······304

5.9 承臺計算······311

6 灌注樁施工······317

6.2 一般規定······317

6.3 泥漿護壁成孔灌注樁······317

6.4 長螺旋鉆孔壓灌樁······318

6.5 沉管灌注樁和內夯沉管灌灌注樁······319

6.6 干作業成孔灌注樁······319

6.7 灌注樁后注漿······319

7 混凝土預制樁與鋼樁施工······321

7.1 混凝土預制樁的制作······321

7.3 混凝土預制樁的接樁······321

7.4 錘擊沉樁······322

7.6 鋼樁（鋼管樁、H型樁及其他異型鋼樁）施工······322

8 承臺施工······325

8.1 基坑開挖和回填······325

8.2 鋼筋和混凝土施工······325

9 樁基工程質量檢查和驗收······326