DBT29-252-2018······1

1 總則······10

2 術語······11

3 基本規(guī)定······13

4 勘察······15

5 設計······18

5.1 一般規(guī)定······18

5.2 回灌井布置······19

5.3 回灌水位計算及預測······20

5.4 回灌井構造······23

6 施工與驗收······25

6.1 成孔施工······25

6.2 井管安裝······25

6.3 濾料投放······26

6.4 止水施工······26

6.5 洗井······27

6.6 試抽水試驗······27

6.7 成井質量驗收······28

7 運行與監(jiān)測······30

7.1 運行原則······30

7.2 回揚······31

7.3 回灌監(jiān)測······31

8 回灌水源處理······33

8.1 一般規(guī)定······33

8.2 水質處理措施······33

附錄A 單井回灌試驗要求······34

附錄B 基坑地下水回灌工程含水層選擇······36

附錄C 回揚要求······44

本規(guī)程用詞說明······45

引用標準名錄······46

條文說明······47

1 總則······50

2 術語······51

3 基本規(guī)定······52

4 勘察······53

5 設計······55

5.1 一般規(guī)定······55

5.2 回灌井布置······55

5.3 回灌水位計算及預測······60

5.4 回灌井構造······66

6 施工與驗收······67

6.1 成孔施工······67

6.2 井管安裝······67

6.3 濾料投放······67

6.5 洗井······68

6.7 成井質量驗收······68

7 運行與監(jiān)測······70

7.1 運行原則······70

7.2 回揚······72

7.3 監(jiān)測······72

8 回灌水源處理······74

8.1 一般規(guī)定······74

8.2 水質處理措施······74

附錄C 回揚要求······76