本規范共分11章和4個附錄,主要內容有:總則,術語和符號,基本規定,鉆探準備工作,工程地質鉆探,水文地質鉆探與水井施工,基樁孔和成槽施工,特種鉆探,沖洗介質與護壁堵漏,鉆探質量,鉆探設備使用、維護與拆遷等。

GB50734-2012······1

1 總則······13

2 術語和符號······14

2.1 術語······14

2.2 符號······18

3 基本規定······19

4 鉆探準備工作······21

4.1 編制鉆探施工······21

4.2 施工場地準備······21

4.3 基臺與鉆塔安······22

4.4 鉆探設備安裝······23

4.5 附屬設備安裝······23

4.6 準備工作檢查······24

5 工程地質鉆探······25

5.1 鉆孔結構設計與鉆進方法選擇······25

5.2 沖擊鉆進······26

5.3 回轉鉆進······26

5.4 地下水位觀測······32

5.5 鉆孔止水與封孔······32

6 水文地質鉆探與水井施工······34

6.1 鉆孔結構設計與鉆進方法選擇······34

6.2 沖擊鉆進······36

6.3 回轉鉆進······37

6.4 氣動沖擊回轉鉆進······42

6.5 水文地質地下水位觀測······43

6.6 成井工藝······43

7 基樁孔和成槽施工······46

7.1 一般規定······46

7.2 沖擊鉆進······46

7.3 沖抓錐鉆進······47

7.4 大直徑回轉鉆進······47

7.5 潛水電鉆鉆進······49

7.6 螺旋鉆進······50

7.7 旋挖鉆進······50

7.8 鉆孔擴底鈷進······51

7.9 鉆孔擠擴支盤施工······51

7.10 成槽施工······52

7.11 清孔······53

8 特種鉆探······54

8.1 定向鉆進······54

8.2 巖心定向鉆進······55

8.3 水平孔鉆進······55

8.4 水上鉆探······57

8.5 孔內爆破······60

9 沖洗介質與護壁堵漏······62

9.1 沖洗介質······62

9.2 護壁堵漏······64

10 鉆探質量······66

10.1 巖(土）心、土試樣與水試樣的采取······66

10.2 勘察孔孔深校正與鉆孔彎曲度······69

10.3 供水管井成井質暈······70

10.4 基樁孔成孔質量······70

10.5 成槽質量······71

10.6 原始報表······54

10.7 終孔驗收與資料提交······72

11 鉆探設備使用、維護與拆遷······73

11.1 鉆探設備使用與維護······73

11.2 鉆探設備拆遷······73

附錄A 巖心鉆探巖石可鉆性分級表······74

附錄B 土的分類······76

附錄C 巖心鉆探巖石研磨性分級表······77

附錄D 土試樣質量等級劃分······78

本規范用詞說明······79

引用標準名錄······80

附:條文說明······81

1 總則······85

3 基本規定······86

4 鉆探準備工作······88

4.1 編制鉆探施工方案······88

4.2 施工場地準備······88

4.3 基臺與鉆塔安裝······88

4.4 鉆探設備安裝······89

4.5 附屬設備安裝······89

4.6 準備工作檢查······89

5 工程地質鉆探······91

5.1 鉆孔結構設計與鉆進方法選擇······91

5.2 沖擊鉆進······91

5.3 回轉鉆進······92

5.4 地下水位觀測······96

5.5 鉆孔止水與封孔······96

6 水文地質鉆探與水井施工······97

6.1 鉆孔結構設計與鉆進方法選擇······97

6.2 沖擊鉆進······97

6.3 回轉鉆進······99

6.4 氣動沖擊回轉鉆進······102

6.6 成井工藝······103

7 基樁孔和成槽施工······105

7.1 一般規定······105

7.2 沖擊鉆進······105

7.3 沖抓錐鉆進······106

7.4 大直徑回轉鉆進······106

7.5 潛水電鉆鉆進······106

7.6 螺旋鉆進······106

7.7 旋挖鉆進······107

7.8 鉆孔擴底鉆進······108

7.9 鉆孔擠擴支盤施工······108

7.10 成糟施工······109

7.11 清孔······109

8 特種鉆探······111

8.1 定向鉆進······111

8.2 巖心定向鉆進······112

8.3 水平孔鉆進······112

8.4 水上鉆探······113

8.5 孔內爆破······115

9 沖洗介質與護壁堵漏······117

9.1 沖洗介質······117

9.2 護壁堵漏······118

10 鉆探質量······120

10.1 巖(土)心、土試樣與水試樣的采取······120

10.2 勘察孔孔深校正與鉆孔彎曲度······121

10.3 供水管井成井質量······121

10.4 基樁孔成孔質量······122

10.5 成槽質量······122

10.6 原始報表······122

10.7 終孔驗收與資料提交······122

11 鉆探設備使用、維護與拆遷······123

11.1 鉆探設備使用與維護······123

11.2 鉆探設備拆遷······123