中华人民共和国水利部：负责保障水资源的合理开发利用，拟订水利战略规划和政策，起草有关法律法规草案，制定部门规章，组织编制国家确定的重要江河湖泊的流域综合规划、防洪规划等重大水利规划。按规定制定水利工程建设有关制度并组织实施，负责提出水利固定资产投资规模和方向、国家财政性资金安排的意见，按国务院规定权限，审批、核准国家规划内和年度计划规模内固定资产投资项目；提出中央水利建设投资安排建议并组织实施。负责生活、生产经营和生态环境用水的统筹兼顾和保障。实施水资源的统一监督管理，拟订全国和跨省、自治区、直辖市水中长期供求规划、水量分配方案并监督实施，组织开展水资源调查评价工作，按规定开展水能资源调查工作，负责重要流域、区域以及重大调水工程的水资源调度，组织实施取水许可、水资源有偿使用制度和水资源论证、防洪论证制度。指导水利行业供水和乡镇供水工作。

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

根据水利技术标准制修订计划安排，按照SL 1-2014《水利技术标准编写规定》的要求，对SL 279-2002《水工隧洞设计规范》进行修订。本标准共11章和4个附录，主要技术内容有：——基本资料；——隧洞布置；——隧洞压力状态及洞型尺寸；——隧洞水力设计；——土洞设计；——不