DBT29-251-2018······1

目次······7

1 總則······13

2 術語······14

3 基礎資料······18

4 聯絡通道地層凍結設計······20

4.1 一般規定······20

4.2 凍結壁設計······22

4.3 制冷系統設計······27

5 聯絡通道凍結孔與凍結器······32

5.1 凍結孔······32

5.2 凍結管······34

5.3 供液管······35

5.4 質量驗收······36

6 聯絡通道冷凍站······37

6.1 冷凍站位置······37

6.2 冷凍站安裝······37

6.3 冷凍站運轉······39

6.4 停凍······40

7 聯絡通道凍結壁檢測與判斷······41

7.1 測溫孔布置······41

7.2 測溫孔檢測······41

7.3 泄壓孔及其它檢測工作······42

7.4 質量驗收······43

8 聯絡通道凍結工程收尾工作······45

8.1 冷凍站拆除······45

8.2 凍結管充填······45

8.3 技術檔案······46

9 聯絡通道開挖與構筑······48

9.1 隧道支撐和防護門······48

9.2 開挖準備及試挖······49

9.3 正式開挖······51

9.4 質量控制與驗收······52

9.5 結構施工······53

9.6 襯砌后充填注漿和地層融沉注漿······53

10 盾構始發與接收加固······55

10.1 加固凍結設計······55

10.2 凍結加固體的槍測與判斷······59

10.3 施工······60

10.4 融沉注漿······62

10.5 技術檔案······63

11 周邊環境監控量測······64

11.1 基本要求······64

11.2 監測項目及要求······64

12 應急管理······66

附錄A 盾構始發接收地層加固凍結加固體溫度場解析解及厚度和平均溫度測算方法······68

附錄B 市區及濱海新區土層熱物理特性指標和人工凍土物理力學特性指標表······79

本規程用詞說明······86

引用標準名錄······87

條文說明······88

目次······89

1 總則······91

3 基礎資料······92

4 聯絡通道地層凍結設計······93

4.1 一般規定······93

4.2 凍結壁設計······93

4.3 制冷系統設計······96

5 聯絡通道凍結孔與凍結器······97

5.1 凍結孔······97

5.2 凍結管······98

5.3 供液管······98

5.4 質量驗收······99

7 聯絡通道凍結壁檢測與判斷······100

7.1 測溫孔布置······100

7.2 測溫孔檢測······100

7.3 泄壓孔及其它檢測工作······101

7.4 質量驗收······101

9 聯絡通道開挖與構筑······102

9.1 隧道支撐和防護門······102

9.2 開挖準備及試挖······103

9.3 正式開挖······103

9.4 質量控制和驗收······104

9.6 襯砌后充填注漿和地層融沉注漿······104

10 盾構始發與接收加固······105

10.1 加固凍結設計······105

10.3 施工······105