Specification for Design of Hydraulic Tunnels SL 279-2016水工隧洞設計規(guī)范（英文版）

Introduction to English Version
Foreword
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Basic Data
4 Layout of Tunnels
4.1 Selection of Tunnel Alignment
4.2 Layout of Tunnel Inlets and Outlets
4.3 Layout of Multipurpose Tunnels
5 Pressure Status, Shape and Size of Tunnels
5.1 Selection of Pressure Status
5.2 Cross-Sectional Shape
5.3 Cross-Sectional Size
6 Hydraulic Design of Tunnels
6. 1 Principle of Calculation
6.2 Cavitation Damage Prevention Design of High-Velocity Tunnels
7 Design of Soil Tunnels
7.1 Supports and Linings of Soil Tunnels
7.2 Joints, Seepage Control and Waterstops for the Linings of Soil Tunnels
8 Design of Tunnels in Poor Ground
9 Tunnel Supports and Linings
9.1 General
9.2 Loads and Load Combinations
9.3 Unreinforced- and Reinforced-Concrete Linings
9.4 Prestressed Concrete Linings
9.5 Unlined and Bolt-Shotcrete Lined Tunnels
9.6 Design of Reinforced Concrete Lined Bifurcation
9.7 Joints in Linings
9.8 Design of Water-Retaining Plugs
10 Grouting, Seepage Control and Drainage of Tunnels
10.1 Grouting
10.2 Seepage Control and Drainage
11 Tunnel Operation and Maintenance
Annex A Head Loss Calculation for Hydraulic Tunnels
A. 1 Friction Losses
A. 2 Form Losses
Annex B Cavitation Damage Prevention Design of High-Velocity Tunnels
Annex C Calculation Method and Reduction Coefficient of External Water Pressure
Annex D Calculation of Concrete Lining Crack Width
Explanation of Wording