GB50025-2018······1

1 總則······14

2 術(shù)語和符號(hào)······15

2.1 術(shù)語······15

2.2 符號(hào)······16

3 基本規(guī)定······19

4 勘察······22

4.1 一般規(guī)定······22

4.2 各勘察階段工作要求······24

4.3 測定黃土濕陷性的試驗(yàn)······27

4.4 黃土濕陷性評(píng)價(jià)······32

5 設(shè)計(jì)······36

5.1 一般規(guī)定······36

5.2 場址選擇與總平面設(shè)計(jì)······37

5.3 建筑設(shè)計(jì)······40

5.4 結(jié)構(gòu)設(shè)計(jì)······42

5.5 給水排水、供熱與通風(fēng)設(shè)計(jì)······44

5.6 地基計(jì)算······49

5.7 樁基······51

5.8 基坑設(shè)計(jì)······53

6 地基處理······55

6.1 一般規(guī)定······55

6.2 墊層法······60

6.3 強(qiáng)夯法······61

6.4 擠密法······63

6.5 預(yù)浸水法······64

6.6 組合處理······65

6.7 黃土高填方地基······66

7 施工······69

7.1 一般規(guī)定······69

7.2 地基處理和樁基施工······71

7.3 基坑和基槽施工······75

7.4 上部結(jié)構(gòu)施工······76

7.5 管道和儲(chǔ)水構(gòu)筑物施工······77

8 地基及樁基驗(yàn)收檢驗(yàn)······80

8.1 一般規(guī)定······80

8.2 地基驗(yàn)收檢驗(yàn)······80

8.3 樁基驗(yàn)收檢驗(yàn)······83

9 既有建筑物地基加固和糾傾······85

9.1 一般規(guī)定······85

9.2 單液硅化法和堿液加固法······86

9.3 旋噴加固法······90

9.4 坑式靜壓樁托換法······92

9.5 糾傾······93

10 使用與維護(hù)······96

10.1 一般規(guī)定······96

10.2 維護(hù)與檢修······96

10.3 沉降觀測和地下水位觀測······97

附錄A 各類建筑舉例······99

附錄B 中國溫陷性黃土工程地質(zhì)分區(qū)······100

附錄C 黃土地層的劃分······103

附錄D 新近堆積黃土的判別······104

附錄E 鉆孔內(nèi)采取不擾動(dòng)土樣的操作要點(diǎn)······105

附錄F 未消除全部濕陷量的地基地下水位上升時(shí)的設(shè)計(jì)措施······108

附錄G 單樁豎向靜載荷浸水試驗(yàn)要點(diǎn)······109

附錄H 復(fù)合地基浸水載荷試驗(yàn)要點(diǎn)······111

附錄J 墊層、強(qiáng)夯和擠密地基載荷試驗(yàn)要點(diǎn)······114

本標(biāo)準(zhǔn)用詞說明······117

引用標(biāo)準(zhǔn)名錄······118

附: 條文說明······119

1 總則······124

2 術(shù)語和符號(hào)······126

3 基本規(guī)定······127

4 勘察······129

4.1 一般規(guī)定······129

4.2 各勘察階段工作要求······130

4.3 測定黃土濕陷性的試驗(yàn)······132

4.4 黃土濕陷性評(píng)價(jià)······136

5 設(shè)計(jì)······142

5.1 一般規(guī)定······142

5.2 場址選擇與總平面設(shè)計(jì)······144

5.3 建筑設(shè)計(jì)······146

5.4 結(jié)構(gòu)設(shè)計(jì)······148

5.5 給水排水、供熱與通風(fēng)設(shè)計(jì)······149

5.6 地基計(jì)算······155

5.7 樁基······157

5.8 基坑設(shè)計(jì)······165

6 地基處理······167

6.1 一般規(guī)定······167

6.2 墊層法······172

6.3 強(qiáng)夯法······172

6.4 擠密法······176

6.5 預(yù)浸水法······178

6.6 組合處理······180

6.7 黃土高填方地基······181

7 施工······185

7.1 一般規(guī)定······185

7.2 地基處理和樁基施工······186

7.3 基坑和基槽施工······190

7.4 上部結(jié)構(gòu)施工······191

7.5 管道和儲(chǔ)水構(gòu)筑物施工······191

8 地基及樁基驗(yàn)收檢驗(yàn)······195

8.1 一般規(guī)定······195

8.2 地基驗(yàn)收檢驗(yàn)······196

8.3 樁基驗(yàn)收檢驗(yàn)······197

9 既有建筑物地基加固和糾傾······200

9.1 一般規(guī)定······200

9.2 單液硅化法和堿液加固法······200

9.3 旋噴加固法······205

9.4 坑式靜壓樁托換法······206

9.5 糾傾······207

10 使用與維護(hù)······211

10.1 一般規(guī)定······211

10.2 維護(hù)與檢修······212

10.3 沉降觀測和地下水位觀測······212

附錄B 中國濕陷性黃土工程地質(zhì)分區(qū)······213

附錄C 黃土地層的劃分······214

附錄D 新近堆積黃土的判別······215

附錄F 未消除全部濕陷量的地基地下水位上升時(shí)的設(shè)計(jì)措施······220

附錄G 單樁豎向靜載荷浸水試驗(yàn)要點(diǎn)······221

附錄J 墊層、強(qiáng)夯和擠密地基載荷試驗(yàn)要點(diǎn)······223