DBT29-272-2019······1

1 總則······12

2 術語······13

3 基本規定······15

3.1 一般規定······15

3.2 工程勘察······15

3.3 周邊環境調查······17

3.4 平縱斷面設計······18

4 限界及內輪廓······20

4.1 一般規定······20

4.2 隧道最小有效凈空面積······20

4.3 隧道內輪廓······21

5 工程材料及耐久性······22

5.1 工程材料······22

5.2 耐久性設計······23

6 荷載······25

6.1 荷載分類及荷載組合······25

6.2 荷載計算······27

7 結構計算······29

7.1 一般規定······29

7.2 橫向內力計算······30

7.3 縱向內力計算······35

7.4 變形計算······35

7.5 管片接頭計算······36

8 抗震計算······37

8.1 一般規定······37

8.2 設計地震動參數······37

8.3 抗震計算······38

8.4 抗震構造措施······39

9 管片構造······41

9.1 一般規定······41

9.2 管片拼裝······41

9.3 管片構造······43

9.4 鋼筋混凝土管片······45

9.5 鋼管片······48

10 結構防排水······49

10.1 一般規定······49

10.2 管片自防水······50

10.3 管片接縫防水······50

10.4 特殊部位防水······53

10.5 隧道內排水······55

11 附屬結構······56

11.1 盾構工作井······56

11.2 聯絡通道及疏散平臺······57

11.3 區間風井······58

12 盾構施工······59

12.1 地層加固及施工輔助措施······59

12.2 掘進要求······59

12.3 璧后注漿······60

13 監控量測······62

13.1 一般規定······62

13.2 監測范圍······62

13.3 監測項目······63

13.4 監測點布設······64

13.5 監測頻率和監測控制值······65

14 風險控制······67

14.1 一般規定······67

14.2 風險識別與分級······67

14.3 風險分析及控制······68

本規程用詞說明······70

引用標準名錄······71

條文說明······72

1 總則······76

2 術語······77

3 基本規定······78

3.1 一般規定······78

3.2 工程勘察······78

3.3 周邊環境調查······79

3.4 平縱斷面設計······79

4 限界及內輪廓······81

4.2 隧道最小有效凈空面積······81

4.3 隧道內輪廓······85

5 工程材料及耐久性······88

5.1 工程材料······88

5.2 耐久性設計······88

6 荷載······89

6.1 荷載分類及荷載組合······89

6.2 荷載計算······89

7 結構計算······93

7.2 橫向內力計算······93

7.3 縱向內力計算······98

7.5 管片接頭計算······99

8 抗震計算······103

8.3 抗震計算······103

8.4 抗震構造措施······103

9 管片構造······105

9.2 管片拼裝······105

9.3 管片構造······105

9.4 鋼筋混凝土管片······106

10 結構防排水······108

10.1 一般規定······108

10.2 管片自防水······108

10.3 管片接縫防水······109

11 附屬結構······111

11.1 盾構工作井······111

11.2 聯絡通道及疏散平臺······113

11.3 區間風井······114

12 盾構施工······116

12.1 地層加固及施工輔助措施······116

12.2 掘進要求······118

12.3 壁后注漿······119

13 監控量測······121

13.1 一般規定······121

13.2 監測范圍······121

13.3 監測項目······122

13.4 監測點布設······123

13.5 監測頻率和監測控制值······123

14 風險控制······125

14.1 一般規定······125

14.2 風險識別與分級······125

14.3 風險分析及控制······129