DB64T1646-2019······1

1 總則······7

2 規(guī)范性引用文件······7

3 術(shù)語和符號······8

3.1 術(shù)語······8

3.2 符號······9

4 基本規(guī)定······10

4.1 巖土工程勘察分級······10

4.2 前期工作······13

5 各類工程勘察基本要求······14

5.1 工業(yè)與民用建筑······14

5.2 邊坡工程······17

5.3 基坑工程······18

5.4 樁基礎(chǔ)······19

5.5 市政工程······21

5.6 廢棄物處理工程······21

5.7 地基處理······24

5.8 既有建筑物的增載和保護······25

5.9 新能源電場工程······27

6 不良地質(zhì)作用和地質(zhì)災害······29

6.1 滑坡······29

6.2 危巖和崩塌······30

6.3 泥石流······31

6.4 米空區(qū)······32

6.5 場地和地基的地震效應······34

7 特殊性巖土······38

7.1 濕陷性黃土和濕陷性土······38

7.2 軟土······43

7.3 混合土······44

7.4 填土······44

7.5 膨脹巖土······45

7.6 鹽漬巖土······46

7.7 風化巖和殘積土······48

7.8 污染土······48

8 地下水······50

8.1 一般規(guī)定······50

8.2 水文地質(zhì)參數(shù)確定······51

8.3 地下水作用的評價······52

8.4 抗浮設(shè)防水位······53

9 工程地質(zhì)測繪和調(diào)查······53

9.1 一般規(guī)定······53

9.2 工程地質(zhì)調(diào)查······53

9.3 工程地質(zhì)測繪······54

10 勘探和取樣······55

10.1 一般規(guī)定······55

10.2 勘探點的定位與測量······55

10.3 鉆探······56

10.4 井探、槽探和洞探······57

10.5 巖土試樣的采取······57

10.6 地球物理勘探······58

11 原位測試······58

11.1 一般規(guī)定······58

11.2 載荷試驗······58

11.3 圓錐動力觸探試驗······60

11.4 標準貫入試驗······60

11.5 旁壓試驗······61

11.6 波速測試······62

12 室內(nèi)試驗······62

12.1 一般規(guī)定······62

12.2 土的物理性質(zhì)試驗······62

12.3 土的壓縮-固結(jié)試驗······63

12.4 土的抗剪強度試驗······63

12.5 土的動力性質(zhì)試驗······64

12.6 巖石試驗······64

13 水和土腐蝕性的評價······64

13.1 取樣和測試······64

13.2 腐蝕性評價······65

14 現(xiàn)場檢驗和監(jiān)測······68

14.1 一般規(guī)定······68

14.2 地基基礎(chǔ)的檢驗和監(jiān)測······68

15 巖土工程分析評價和成果報告······68

15.1 一般規(guī)定······68

15.2 巖土工程分析評價······68

15.3 巖土參數(shù)的分析和選定······69

15.4 成果報告的要求······70

15.5 圖表及附件······71

附錄A（規(guī)范性附錄）地基承載力修正系數(shù)······73

附錄B（規(guī)范性附錄）地基土承載力特征值······74

附錄C（規(guī)范性附錄）銀川平原地區(qū)粉細砂土壓縮模量和地區(qū)沉降計算經(jīng)驗系數(shù)······75

附錄D（資料性附錄）寧夏濕陷性黃土工程地質(zhì)分區(qū)圖······76

附錄E（資料性附錄）寧夏及臨區(qū)大地構(gòu)造圖······77

附錄F（資料性附錄）寧夏地貌分區(qū)圖······79

1 總則······84

4 基本規(guī)定······85

4.1 巖土工程勘察分級······85

4.2 前期工作······85

5 各類工程勘察基本要求······86

5.1 工業(yè)與民用建筑······86

5.5 市政工程······86

5.6 廢棄物處理工程······86

5.9 新能源電場工程······87

6 不良地質(zhì)作用和地質(zhì)災害······87

6.4 采空區(qū)······87

7 特殊性巖土······88

7.1 濕陷性黃土和濕陷性土······88

7.4 填土······88

7.5 膨脹巖土······88

7.6 鹽漬巖土······88

8 地下水······89

8.3 地下水作用的評價······89

8.4 抗浮設(shè)防水位······89

9 工程地質(zhì)測繪和調(diào)查······90

9.1 一般規(guī)定······90

9.2 工程地質(zhì)調(diào)查······90

9.3 工程地質(zhì)測繪······91

10 勘探和取樣······91

10.1 一般規(guī)定······91

10.2 勘探點的定位與測量······91

10.3 鉆探······92

10.4 井探、槽探和洞探······92

10.5 巖土試樣的采取······92

10.6 地球物理勘探······93

11 原位測試······93

11.1 一般規(guī)定······93

11.2 裁荷試驗······93

11.3 圓錐動力觸探試驗······94

11.4 標準貫入試驗······94

11.5 旁壓試驗······95

11.6 波速測試······95

12 室內(nèi)試驗······95

12.1 一般規(guī)定······95

12.2 土的物理性質(zhì)試驗······96

12.3 土的壓縮-固結(jié)試驗······96

12.4 土的抗剪強度試驗······96

12.5 土的動力性質(zhì)試驗······97

12.6 巖石試驗······97

13 水和土腐蝕性評價······97

13.1 取樣和測試······97

13.2 腐蝕性評價······98

14 現(xiàn)場檢驗和監(jiān)測······98

14.1 一般規(guī)定······98

14.2 地基基礎(chǔ)的檢驗和監(jiān)測······98

15 巖土工程分析評價和成果報告······99

15.1 一般規(guī)定······99

15.3 巖土參數(shù)的分析和選定······99

15.4 成果報告的要求······99

15.5 圖表及附件······100

附錄A 地基承載力修正系數(shù)······100

附錄B 地基土承載力特征值······101

附錄C 銀川平原地區(qū)粉細砂土壓縮模量E，和地區(qū)沉降計算經(jīng)驗系數(shù)妒0······102

附錄D 寧夏濕陷性黃土工程地質(zhì)分區(qū)圖······102

附錄E 寧夏及臨區(qū)大地構(gòu)造圖······103

附錄F 寧夏地貌分區(qū)圖······103