PAS 8810:2016 Tunnel design. Design of concrete segmental tunnel linings. Code of practice

Standard Number

PAS 8810:2016

Title

Tunnel design. Design of concrete segmental tunnel linings. Code of practice

Publication Date

30 April 2016

Descriptors

This PAS makes recommendations for the design of concrete segmental tunnel linings. It covers design considerations from project inception through to the end of the service life of the tunnel. As tunnel construction technology is fast changing, some of the recommendations set out in this PAS might not be fully applicable to a newly-introduced technology that does not exist at the time of this PAS publication.

Keywords

Tunnels, Design, Concretes, Structures, Life cycle

Pages

File Size

24,9 MB

Download file

pas8810-2016.pdf

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
- 3.1 Terms and definitions
- 3.2 Abbreviations
4 Functional requirements
- 4.1 General
- 4.2 Health and safety requirements
- 4.3 Client's project-specific functional requirements
- 4.4 Requirements relating to external impacts
- 4.5 Sustainability
5 Conceptual design
- 5.1 General
- 5.2 Selection of tunnel construction methodology
- 5.3 Space proofing
- 5.4 Feasibility options report
- 5.5 Approval In Principle (AIP)
6 Characterization of ground
- 6.1 General
- 6.2 Desk study
- 6.3 In-situ ground investigation
- 6.4 Reporting
- 6.5 Digital data
- 6.6 Derivation of design parameters
7 Materials design and specification
- 7.1 Concrete
- 7.2 Cements and combinations
- 7.3 Additions
- 7.4 Aggregates
- 7.5 Water
- 7.6 Admixtures
- 7.7 Reinforcement
- 7.8 Exposure classes related to environmental actions
- 7.9 Durability
8 Material characterization and testing
- 8.1 General principles
- 8.2 Concrete characterization
- 8.3 Preconstruction and production testing of concrete materials
9 Limit state design
- 9.1 Design approach
- 9.2 Design situations
- 9.3 Design actions and loads
- 9.4 Ultimate limit state (ULS) and serviceability limit state (SLS)
- 9.5 Partial factors
- 9.6 Load combinations
- 9.6 Structural fire design
10 Precast concrete segmental lining design
- 10.1 Geometrical properties
- 10.2 Design recommendations for precast concrete segment lining
- 10.3 Design recommendations for transient design situations
11 Concrete segment lining modelling
- 11.1 General
- 11.2 Selection of modelling approach
- 11.3 Selection of the ground behaviour model
- 11.4 Definition of the lining model
- 11.5 Methods of analysis of ground structure interaction
- 11.6 Analytical methods
- 11.7 Numerical methods
- 11.8 Junctions and interface with existing assets
- 11.9 Sensitivity analysis
12 Instrumentation and monitoring
Annexes
- Annex A (normative) Design management
- Annex B (informative) Closed-form solutions for static analysis of tunnel lining in soft ground
- Annex C (informative) Convergence-confinement method (CCM) in segment lining design
- Annex D (informative) Six-stage Gate process
Bibliography