DBT29-251-2018······1

目次······7

1 總則······13

2 術(shù)語······14

3 基礎(chǔ)資料······18

4 聯(lián)絡(luò)通道地層凍結(jié)設(shè)計······20

4.1 一般規(guī)定······20

4.2 凍結(jié)壁設(shè)計······22

4.3 制冷系統(tǒng)設(shè)計······27

5 聯(lián)絡(luò)通道凍結(jié)孔與凍結(jié)器······32

5.1 凍結(jié)孔······32

5.2 凍結(jié)管······34

5.3 供液管······35

5.4 質(zhì)量驗收······36

6 聯(lián)絡(luò)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(zhuǎn)······39

6.4 停凍······40

7 聯(lián)絡(luò)通道凍結(jié)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(zhì)量驗收······43

8 聯(lián)絡(luò)通道凍結(jié)工程收尾工作······45

8.1 冷凍站拆除······45

8.2 凍結(jié)管充填······45

8.3 技術(shù)檔案······46

9 聯(lián)絡(luò)通道開挖與構(gòu)筑······48

9.1 隧道支撐和防護門······48

9.2 開挖準(zhǔn)備及試挖······49

9.3 正式開挖······51

9.4 質(zhì)量控制與驗收······52

9.5 結(jié)構(gòu)施工······53

9.6 襯砌后充填注漿和地層融沉注漿······53

10 盾構(gòu)始發(fā)與接收加固······55

10.1 加固凍結(jié)設(shè)計······55

10.2 凍結(jié)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(shù)檔案······63

11 周邊環(huán)境監(jiān)控量測······64

11.1 基本要求······64

11.2 監(jiān)測項目及要求······64

12 應(yīng)急管理······66

附錄A 盾構(gòu)始發(fā)接收地層加固凍結(jié)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(qū)及濱海新區(qū)土層熱物理特性指標(biāo)和人工凍土物理力學(xué)特性指標(biāo)表······79

本規(guī)程用詞說明······86

引用標(biāo)準(zhǔn)名錄······87

條文說明······88

目次······89

1 總則······91

3 基礎(chǔ)資料······92

4 聯(lián)絡(luò)通道地層凍結(jié)設(shè)計······93

4.1 一般規(guī)定······93

4.2 凍結(jié)壁設(shè)計······93

4.3 制冷系統(tǒng)設(shè)計······96

5 聯(lián)絡(luò)通道凍結(jié)孔與凍結(jié)器······97

5.1 凍結(jié)孔······97

5.2 凍結(jié)管······98

5.3 供液管······98

5.4 質(zhì)量驗收······99

7 聯(lián)絡(luò)通道凍結(jié)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(zhì)量驗收······101

9 聯(lián)絡(luò)通道開挖與構(gòu)筑······102

9.1 隧道支撐和防護門······102

9.2 開挖準(zhǔn)備及試挖······103

9.3 正式開挖······103

9.4 質(zhì)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(gòu)始發(fā)與接收加固······105

10.1 加固凍結(jié)設(shè)計······105

10.3 施工······105