DBT29-20-2017······1

目次······8

1 總則······21

2 術(shù)語······22

3 基本規(guī)定······25

4 巖土工程勘察要點(diǎn)······29

4.1 地基土類型······29

4.2 地下水類型與劃分······31

4.3 勘察階段與工作量布置······32

4.4 室內(nèi)試驗(yàn)和原位測(cè)試······34

4.5 勘察報(bào)告······38

5 地基計(jì)算······39

5.1 基礎(chǔ)埋置深度······39

5.2 承載力計(jì)算······40

5.3 變形計(jì)算······47

5.4 穩(wěn)定性計(jì)算······50

6 邊坡穩(wěn)定······53

6.1 一般規(guī)定······53

6.2 抗剪強(qiáng)度指標(biāo)······53

6.3 邊坡設(shè)計(jì)······54

6.4 邊坡穩(wěn)定驗(yàn)算······56

6.5 保證邊坡穩(wěn)定的措施······63

7 地基處理······65

7.1 一般規(guī)定······65

7.2 復(fù)合地基計(jì)算······67

7.3 墊層法······74

7.4 振動(dòng)壓密法······79

7.5 小能量連續(xù)強(qiáng)夯法······80

7.6 砂石樁法······82

7.7 水泥上攪拌法······85

7.8 堆載預(yù)壓法······89

7.9 真空預(yù)壓法······96

7.10 真空預(yù)壓聯(lián)合堆載預(yù)壓法······104

7.11 剛性樁復(fù)合地基······104

7.12 多樁型復(fù)合地基······107

7.13 路基處理······108

8 軟弱地基······113

8.1 一般規(guī)定······113

8.2 軟弱地基設(shè)計(jì)······114

8.3 建筑設(shè)計(jì)措施······114

8.4 結(jié)構(gòu)設(shè)計(jì)措施······116

8.5 大面積地面荷載······118

8.6 施工措施······120

9 淺基礎(chǔ)······121

9.1 一般規(guī)定······121

9.2 無筋擴(kuò)展基礎(chǔ)······122

9.3 擴(kuò)展基礎(chǔ)······124

9.4 柱下條形基礎(chǔ)······136

9.5 筏形基礎(chǔ)······138

10 樁基礎(chǔ)······150

10.1 一般規(guī)定······150

10.2 樁基構(gòu)造······152

10.3 樁頂荷載計(jì)算······153

10.4 樁基豎向承載力計(jì)算······154

10.5 樁基沉降計(jì)算······159

10.6 樁基水平承載力計(jì)算······164

10.7 承臺(tái)計(jì)算與構(gòu)造······164

10.8 減沉復(fù)合樁基礎(chǔ)······173

10.9 灌注樁施工······178

10.10 預(yù)制樁施工······187

10.11 承臺(tái)施工······191

11 基坑工程······192

11.1 一般規(guī)定······192

11.2 土壓力與水壓力······196

11.3 支擋式支護(hù)結(jié)構(gòu)構(gòu)造要求······199

11.4 支擋式支護(hù)結(jié)構(gòu)設(shè)計(jì)計(jì)算······201

11.5 土層錨桿······211

11.6 基坑工程逆作法······213

11.7 巖體基坑工程······215

11.8 水泥土支護(hù)結(jié)構(gòu)······216

11.9 地下水控制······218

11.10 防連續(xù)倒塌設(shè)計(jì)原則······221

11.11 基坑變形控制······224

11.12 基坑工程監(jiān)測(cè)······225

12 盾構(gòu)隧道工程······228

12.1 一般規(guī)定······228

12.2 隧道勘察······230

12.3 隧道結(jié)構(gòu)設(shè)計(jì)······230

12.4 盾構(gòu)隧道土體加固······235

12.5 盾構(gòu)機(jī)掘進(jìn)······243

12.6 盾構(gòu)機(jī)軸線控制······245

12.7 盾構(gòu)機(jī)糾偏量的控制······246

12.8 特殊地段施工······247

12.9 壁后注漿······247

12.10 隧道防水······250

12.11 盾構(gòu)法隧道施工質(zhì)量標(biāo)準(zhǔn)······251

13 頂管工程······253

13.1 一般規(guī)定······253

13.2 頂管管材······254

13.3 頂管工作井設(shè)計(jì)······262

13.4 頂管機(jī)選型······262

13.5 頂管頂力計(jì)算······264

13.6 頂進(jìn)方法的選擇······265

13.7 工作坑······266

13.8 頂進(jìn)······269

13.9 減阻與注漿······273

13.10 中繼間······274

13.11 頂管允許偏差······274

14 市政工程地基基礎(chǔ)······276

14.1 一般規(guī)定······276

14.2 橋涵基礎(chǔ)······276

14.3 板樁岸壁······278

14.4 加筋土擋土墻······284

14.5 重力式擋土墻······287

14.6 管道基礎(chǔ)······290

14.7 沉井······292

14.8 邊坡穩(wěn)定······296

15 港灣工程地基基礎(chǔ)······297

15.1 一般規(guī)定······297

15.2 地基承載力······298

15.3 土坡和地基穩(wěn)定······307

15.4 地基沉降······313

15.5 樁基工程······317

16 場(chǎng)地與地基抗震······328

16.1 一般規(guī)定······328

16.2 場(chǎng)地······328

16.3 場(chǎng)地反應(yīng)譜······330

16.4 場(chǎng)地穩(wěn)定性······331

16.5 地基抗震······334

17 現(xiàn)場(chǎng)檢驗(yàn)與監(jiān)測(cè)······336

17.1 一般規(guī)定······336

17.2 基槽的檢驗(yàn)與監(jiān)測(cè)······337

17.3 基坑與地下工程的檢驗(yàn)與監(jiān)測(cè)······337

17.4 樁基礎(chǔ)檢驗(yàn)與監(jiān)測(cè)······341

17.5 建筑物沉降觀測(cè)······344

附錄A 巖土基本變量統(tǒng)計(jì)參數(shù)的確定方······346

附錄B 豎向荷載作用下地基承載力系數(shù)······348

附錄C 淺層平板載荷試驗(yàn)要點(diǎn)······349

附錄D 沉降計(jì)算等效深度······352

附錄E 復(fù)合地基靜載荷試驗(yàn)······353

附錄F 室內(nèi)水泥土抗壓強(qiáng)度試驗(yàn)要點(diǎn)······358

附錄G 水泥土攪拌樁抽芯檢測(cè)試驗(yàn)要點(diǎn)······361

附錄H 石灰土處理層厚度計(jì)算圖······363

附錄J 復(fù)合配筋預(yù)應(yīng)力混凝土樁配筋表及承載力計(jì)算······364

附錄K 單樁豎向靜載荷試驗(yàn)要點(diǎn)······368

附錄L 單樁水平載荷試驗(yàn)要點(diǎn)······372

附錄M 矩形支護(hù)樁配筋表······375

附錄N 基坑支護(hù)結(jié)構(gòu)計(jì)算要點(diǎn)······376

附錄P 自由變形的彈性均質(zhì)圓環(huán)內(nèi)力計(jì)算······385

附錄Q 頂管允許頂力計(jì)算方法······387

附錄R 擋土墻土壓力計(jì)一算······389

附錄S 地基承載力系數(shù)表······393

附錄T 樁的單位面積極限側(cè)摩阻力與極限端阻力標(biāo)準(zhǔn)值······399

附錄U 水平力作用下樁的計(jì)算······407

附錄V 各類土動(dòng)剪切模量比、阻尼比與剪應(yīng)變關(guān)系······423

本規(guī)范用詞說明······427

引用標(biāo)準(zhǔn)名錄······428

目次······435

3 基本規(guī)定······440

4 巖土工程勘察要點(diǎn)······441

4.1 地基土類型······441

4.2 地下水類型與劃分······441

4.3 勘察階段與工作量布置······442

4.4 室內(nèi)試驗(yàn)和原位測(cè)試······443

4.5 勘察報(bào)告······444

5 地基計(jì)算······445

5.1 基礎(chǔ)埋置深度······445

5.2 承載力計(jì)算······446

5.3 變形計(jì)算······453

6 邊坡穩(wěn)定······455

6.1 一般規(guī)定······455

6.2 抗剪強(qiáng)度指標(biāo)······456

6.3 邊坡設(shè)計(jì)······457

6.4 邊坡穩(wěn)定驗(yàn)算······458

6.5 保證邊坡穩(wěn)定的措施······461

7 地基處理······462

7.1 一般規(guī)定······462

7.2 復(fù)合地基計(jì)算······462

7.3 墊層法······469

7.4 振動(dòng)壓密法······476

7.5 小能量連續(xù)強(qiáng)夯法······477

7.6 砂石樁法······478

7.8 堆載預(yù)壓法······481

7.9 真空預(yù)壓法······485

7.10 真空預(yù)壓聯(lián)合堆載預(yù)壓法······488

7.13 路基處理······489

8 軟弱地基······492

8.1 一般規(guī)定······492

8.3 建筑設(shè)計(jì)措施······492

8.4 結(jié)構(gòu)設(shè)計(jì)措施······493

8.5 大面積地面荷載······493

8.6 施工措施······494

9 淺基礎(chǔ)······495

9.2 無筋擴(kuò)展基礎(chǔ)······495

9.3 擴(kuò)展基礎(chǔ)······495

9.4 柱下條形基礎(chǔ)······500

9.5 筏形基礎(chǔ)······501

10 樁基礎(chǔ)······519

10.1 一般規(guī)定······519

10.4 樁基豎向承載力計(jì)算······525

10.5 樁基沉降計(jì)算······528

10.8 減沉復(fù)合樁基礎(chǔ)······531

10.9 灌注樁施工······535

10.10 預(yù)制樁施工······536

11 基坑工程······540

11.1 一般規(guī)定······540

11.2 土壓力與水壓力······540

11.3 支擋式支護(hù)結(jié)構(gòu)構(gòu)造要求······542

11.4 支擋式支護(hù)結(jié)構(gòu)設(shè)計(jì)計(jì)算······543

11.8 水泥土支護(hù)結(jié)構(gòu)······546

11.9 地下水控制······548

11.10 防連續(xù)倒塌設(shè)計(jì)原則······549

11.11 基坑變形控制······559

12 盾構(gòu)隧道工程······567

12.1 一般規(guī)定······567

12.2 隧道勘察······567

12.3 隧道結(jié)構(gòu)設(shè)計(jì)······567

12.4 盾構(gòu)隧道土體加固······576

12.5 盾構(gòu)機(jī)掘進(jìn)······576

12.6 盾構(gòu)機(jī)軸線控制······577

12.7 盾構(gòu)機(jī)糾偏量的控制······579

12.8 特殊地段施工······580

12.9 壁后注漿······582

12.10 隧道防水······584

13 頂管工程······586

13.1 一般規(guī)定······586

13.2 頂管管材······588

13.3 頂管工作井設(shè)計(jì)······590

13.5 頂管項(xiàng)力計(jì)算······591

13.6 頂進(jìn)方法的選擇······592

13.8 頂進(jìn)······592

11.9 減阻與注漿······593

13.10 中繼間······593

13.11 頂管允許偏差······594

14 市政工程地基基礎(chǔ)······595

14.1 一般規(guī)定······595

14.2 橋涵基礎(chǔ)······595

14.3 板樁岸壁······597

14.4 加筋土擋土墻······599

14.5 重力式擋土墻······600

14.6 管道基礎(chǔ)······601

14.7 沉井······603

14.8 邊坡穩(wěn)定······605

15 港灣工程地基基礎(chǔ)······606

15.1 一般規(guī)定······606

15.2 地基承載力······607

15.3 土坡和地基穩(wěn)定······612

15.4 地基沉降······618

15.5 樁基工程······624

16 場(chǎng)地與地基抗震······631

16.1 一般規(guī)定······631

16.2 場(chǎng)地······631

16.3 場(chǎng)地反應(yīng)譜······632

16.4 場(chǎng)地穩(wěn)定性······632

17 現(xiàn)場(chǎng)檢驗(yàn)與監(jiān)測(cè)······633

17.1 一般規(guī)定······633

17.2 基槽的檢驗(yàn)與監(jiān)測(cè)······633

17.3 基坑與地下工程的檢驗(yàn)與監(jiān)測(cè)······634

17.4 樁基礎(chǔ)檢驗(yàn)與監(jiān)測(cè)······635

17.5 建筑物沉降觀測(cè)······638