CJJT74-2020······1

1 總則······11

2 術(shù)語(yǔ)和符號(hào)······12

2.1 術(shù)語(yǔ)······12

2.2 符號(hào)······13

3 基本規(guī)定······16

4 頂進(jìn)施工方法······17

4.1 一般規(guī)定······17

4.2 一次頂進(jìn)法······17

4.3 中繼間法······18

4.4 頂拉法和半頂拉法······18

4.5 機(jī)械切削式頂進(jìn)法······19

5 頂進(jìn)工藝設(shè)計(jì)······20

5.1 現(xiàn)場(chǎng)調(diào)查······20

5.2 排水與降水······20

5.3 工作坑······21

5.4 滑板······21

5.5 潤(rùn)滑隔離層······22

5.6 頂力計(jì)算······23

5.7 后背······25

5.8 鋼刃腳及中平臺(tái)······26

5.9 頂進(jìn)設(shè)備······27

5.10 機(jī)械切削式頂進(jìn)法工藝設(shè)計(jì)······29

6 頂進(jìn)施工······32

6.1 施工測(cè)量······32

6.2 施工排水與降水······32

6.3 工作坑開挖與支護(hù)······33

6.4 滑板施工······33

6.5 潤(rùn)滑隔離層施工······34

6.6 后背施工······34

6.7 橋體預(yù)制······35

6.8 頂進(jìn)設(shè)備安裝······37

6.9 頂進(jìn)作業(yè)······37

6.10 防水······42

7 既有線路加固······43

7.1 鐵路線路加固······43

7.2 土體加固······45

8 監(jiān)測(cè)······47

9 工程質(zhì)量檢驗(yàn)與驗(yàn)收······49

9.1 一般規(guī)定······49

9.2 工作坑······50

9.3 滑板······51

9.4 箱形節(jié)段預(yù)制模板······52

9.5 節(jié)段預(yù)制混凝土······53

9.6 箱涵頂進(jìn)······54

9.7 箱形節(jié)段頂進(jìn)······55

9.8 防水······55

附錄A 板樁墻后背墻計(jì)算及穩(wěn)定性驗(yàn)算······58

附錄B 頂進(jìn)施工記錄表······60

本標(biāo)準(zhǔn)用詞說明······62

引用標(biāo)準(zhǔn)名錄······63

附：條文說明······64

1 總則······68

2 術(shù)語(yǔ)和符號(hào)······69

2.1 術(shù)語(yǔ)······69

3 基本規(guī)定······70

4 頂進(jìn)施工方法······72

4.1 一般規(guī)定······72

4.2 一次頂進(jìn)法······72

4.3 中繼間法······72

4.4 頂拉法和半頂拉法······73

4.5 機(jī)械切削式頂進(jìn)法······73

5 頂進(jìn)工藝設(shè)計(jì)······74

5.1 現(xiàn)場(chǎng)調(diào)查······74

5.2 排水與降水······74

5.3 工作坑······75

5.4 滑板······75

5.5 潤(rùn)滑隔離層······76

5.6 頂力計(jì)算······76

5.7 后背······77

5.8 鋼刃腳及中平臺(tái)······78

5.9 頂進(jìn)設(shè)備······79

6 頂進(jìn)施工······80

6.1 施工測(cè)量······80

6.2 施工排水與降水······80

6.3 工作坑開挖與支護(hù)······80

6.4 滑板施工······80

6.5 潤(rùn)滑隔離層施工······81

6.6 后背施工······81

6.7 橋體預(yù)制······81

6.8 頂進(jìn)設(shè)備安裝······82

6.9 頂進(jìn)作業(yè)······82

6.10 防水······85

7 既有線路加固······86

7.1 鐵路線路加固······86

7.2 土體加固······87

8 監(jiān)測(cè)······91

9 工程質(zhì)量檢查與驗(yàn)收······92

9.1 一般規(guī)定······92