DB/T29-272-2019：天津市快速轨道交通盾构隧道设计规程

DBT29-272-2019······1

1 总则······12

2 术语······13

3 基本规定······15

3.1 一般规定······15

3.2 工程勘察······15

3.3 周边环境调查······17

3.4 平纵断面设计······18

4 限界及内轮廓······20

4.1 一般规定······20

4.2 隧道最小有效净空面积······20

4.3 隧道内轮廓······21

5 工程材料及耐久性······22

5.1 工程材料······22

5.2 耐久性设计······23

6 荷载······25

6.1 荷载分类及荷载组合······25

6.2 荷载计算······27

7 结构计算······29

7.1 一般规定······29

7.2 横向内力计算······30

7.3 纵向内力计算······35

7.4 变形计算······35

7.5 管片接头计算······36

8 抗震计算······37

8.1 一般规定······37

8.2 设计地震动参数······37

8.3 抗震计算······38

8.4 抗震构造措施······39

9 管片构造······41

9.1 一般规定······41

9.2 管片拼装······41

9.3 管片构造······43

9.4 钢筋混凝土管片······45

9.5 钢管片······48

10 结构防排水······49

10.1 一般规定······49

10.2 管片自防水······50

10.3 管片接缝防水······50

10.4 特殊部位防水······53

10.5 隧道内排水······55

11 附属结构······56

11.1 盾构工作井······56

11.2 联络通道及疏散平台······57

11.3 区间风井······58

12 盾构施工······59

12.1 地层加固及施工辅助措施······59

12.2 掘进要求······59

12.3 璧后注浆······60

13 监控量测······62

13.1 一般规定······62

13.2 监测范围······62

13.3 监测项目······63

13.4 监测点布设······64

13.5 监测频率和监测控制值······65

14 风险控制······67

14.1 一般规定······67

14.2 风险识别与分级······67

14.3 风险分析及控制······68

本规程用词说明······70

引用标准名录······71

条文说明······72

1 总则······76

2 术语······77

3 基本规定······78

3.1 一般规定······78

3.2 工程勘察······78

3.3 周边环境调查······79

3.4 平纵断面设计······79

4 限界及内轮廓······81

4.2 隧道最小有效净空面积······81

4.3 隧道内轮廓······85

5 工程材料及耐久性······88

5.1 工程材料······88

5.2 耐久性设计······88

6 荷载······89

6.1 荷载分类及荷载组合······89

6.2 荷载计算······89

7 结构计算······93

7.2 横向内力计算······93

7.3 纵向内力计算······98

7.5 管片接头计算······99

8 抗震计算······103

8.3 抗震计算······103

8.4 抗震构造措施······103

9 管片构造······105

9.2 管片拼装······105

9.3 管片构造······105

9.4 钢筋混凝土管片······106

10 结构防排水······108

10.1 一般规定······108

10.2 管片自防水······108

10.3 管片接缝防水······109

11 附属结构······111

11.1 盾构工作井······111

11.2 联络通道及疏散平台······113

11.3 区间风井······114

12 盾构施工······116

12.1 地层加固及施工辅助措施······116

12.2 掘进要求······118

12.3 壁后注浆······119

13 监控量测······121

13.1 一般规定······121

13.2 监测范围······121

13.3 监测项目······122

13.4 监测点布设······123

13.5 监测频率和监测控制值······123

14 风险控制······125

14.1 一般规定······125

14.2 风险识别与分级······125

14.3 风险分析及控制······129