Foreword
Explanatory Notes to the Wording of This Specification
1 Scope
2 Normative References
3 General
4 Terminology
5 Basic Data
6 Arrangement of Tunnel
7 Shape and Dimensions of Tunnel Section
8 Hydraulic Design
9 Basic Principles for Structural Design
10 Unlined and Bolt-Shotcrete Tunnels
11 Concrete and Reinforced Concrete Lining
12 Prestressed Concrete Lining
13 High-Pressure Branch Tunnels with Reinforced Concrete Lining
14 Design of Plugs
15 Grouting, Seepage Control and Water Drainage
16 Monitoring, Operation and Maintenance
Annex A (Normative) Engineering Geology Classification of Surrounding Rock
Annex B (Normative) Materials
Annex C (Informative) Head Loss Calculation for Hydraulic Tunnels
Annex D (Normative) Anti-Cavitation Design of High Velocity Hydraulic Tunnels
Annex E (Normative) Structure Safety Class of Hydraulic Tunnels
Annex F (Informative) Type and parameter of bolt-shotcrete support
Annex G (Normative) Calculation of Circular Pressure Tunnel Lining
Annex H (Informative) Reduction coefficient of external water pressure
Annex I (Normative) Lining Calculation for Circular Non-pressure Tunnels and Non-circular Tunnels
Annex J (Informative) Cracking of Concrete Lining and Its Preventive Measures
