Standard of ministry of water resources of the people's republic China Specification for design of hydraulic tunnels:SL 279-20169787517076278
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作者中华人民共和国水利部
出版社中国水利水电出版社
ISBN9787517076278
出版时间2018-08
装帧平装
开本32开
定价160元
货号9534030
上书时间2024-12-23
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商品简介
本书根据水利技术标准制修订计划安排，按照 SL1-2014《水利技术标准编写规定》的要求，对 SL279-2002《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；不良地质洞段设计；隧洞支护与衬砌；隧洞 灌浆、防渗和排水；隧洞运行和维修。
作者简介
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。
目录
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 I，ayout 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 I_inings 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 Jointsin 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
内容摘要
7.1.1 The design of soil tunnels shall meet the following requirements：
1 For longer tunnels， technical and economic comparison between conventional and shield construction method should be carried out.
2 For soil tunnels， the cross - section should be circular-shaped or horseshoe-shaped.
3 For soil tunnels， composite linings consisting of shotcrete or bolt-shotcrete and reinforced concrete should be adopted. High performance wet shotcrete should be used. The lining should be of integral structure. And structural measures shall be taken to prevent exfiltration.
4 Surface water and construction water in tunnels shall be properly diverted and drained.
5 For a soil tunnel connected with a rock tunnel， its support and lining shall extend into the rock tunnel for a sufficient length. The minimum overburden of rock tunnel at the transition shall not be less than the tunnel diameter.
7.1. 2 The surrounding rock pressure （load） on the lining structure of the soil tunnel shall be determined as follows：
1 For a soil tunnel which can form a ground arch， surrounding rock pressure may be estimated according to equilibrium theory of loose medium.
2 For a shallow soil tunnel which cannot form a ground arch， surrounding rock pressure should be calculated according to the gravity of overlying soil above the arch and adjusted based on topographical conditions and stabilization measures adopted in construction.
3 For a deep soil tunnel which cannot form a ground arch， surrounding rock pressure should be studied spely.
4 Swelling pressure shall be considered for swelling soil， and its value may be studied and determined through sampling tests or field tests.
5 For a tunnel portion with underground water， the loads acting on lining structure shall be determined by the joint action of soil and water pressure. For a tunnel portion with high external water pressure， if the soil mass cannot maintain its stability after being supported， measures including drainage and strengthening support or reinforcing the soil mass should be taken to reduce the load acting on lining structure.
6 Increased earth pressure induced by increased water content of soil caused by exfiltration in the operating period or other reasons shall be considered.
7.1. 3 The calculation of soil tunnel lining shall meet the following requirements：
1 For the calculation of shotcrete or composite lining consisting of bolt-shotcrete and reinforced concrete， the reinforced concrete lining may be designed as per a bearing structure， and calculated by structural mechanics methods. The bolt-shotcrete support may be estimated by the method given in GB 50086 or finite element method， and amended using experience derived from similar projects and construction monitoring results.
精彩内容
This specification is formulated to standardize the design of hydraulic tunnels and ensure the design quality with the view of making use of the state-of-the-art technology， meeting the requirements for safety， applicability， cost-effectiveness， and rationality.
This specification is applicable to the design of Class 1， Class 2 and Class 3 hydraulic tunnels in water resources and hydropower projects， but not applicable to the design of hydraulic tunnels with steel linings in rock/soil mass.
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