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http://onlinepubs.trb.org/Onlinepubs/hrr/1970/339/339-003.pdf
The design of a support system is usually a matter of selection. The selection is more complex than indicated by Tables 1 and 2. Throughout planning and design, the engineer needs to be aware that the geology of the material to be tunneled is the most important variable in establishing the design, construction, and, ultimately, the cost of the tunnel. MODERN CONCEPTS OF THE DESIGN …
https://antraquip.net/tunnel-support-system
Tunnel Support System. Arch Canopy System Antraquip’s Arch Canopy (Barrel Vault) System is designed for pipe roofing, forepoling, anchoring and drainage. For underground infrastructure building in typical urban areas, poor ground conditions and for all underground construction in weak and disturbed soils modern tunneling engineers have developed...
https://ntrl.ntis.gov/NTRL/dashboard/searchResults/titleDetail/PB183799.xhtml
Contents: Introduction; Fundamentals of tunnel support design; Existing theories, design methods, and practices; Tunnel support systems in soil and soft rock; Tunnel support systems in rock: Factors influencing behavior; Tunnel support systems in rock: Design procedures; Potential developments of tunnel support systems; Shotcrete.
https://www.rocscience.com/documents/pdfs/library/TunnelSupportDesign_CGS_2003.pdf
The design of support for tunnels in weak rock is an iterative process. A good starting point is essential to the process and facilitates safe and economic design. Support design for tunnels in weak rock is a clearly three-dimensional problem. However, currently there are very few practical three-dimensional software tools for carrying out the task.
https://www.sciencedirect.com/science/article/pii/0013795279900449
Design of tunnel support systems using ground freezing. Eng. GeoL., 13: 375--395. One of the more promising techniques in soft ground tunneling through urbanized areas is the use of artificially frozen ground for temporary tunnel support. This paper describes the general design considerations involved in the ground freezing method.Cited by: 9
https://apps.dtic.mil/dtic/tr/fulltext/u2/a219783.pdf
TUNNEL DESIGN BY ROCK MASS CLASSIFICATIONS "The origin of the science of classification goes back to the writings of the ancient Greeks; however, the process of classification -- the recognition of similarities and the grouping of objects based thereon -- dates to primitive man.".Cited by: 21
https://nrmt.files.wordpress.com/2011/04/ecg533-rock-excavation-and-support-system.pdf
The NATM is not a set of specific excavation and support techniques and has often been referred to as a "design as you go" approach to tunnelling providing an optimized support based on observed ground conditions but more correctly it is a "design as you monitor" approach based on observed
https://www.youtube.com/watch?v=nrQ7YH4ReEk
Oct 04, 2012 · Excavation Support System Design - Applying Equations of Equilibrium (Part 4) ... Excavation Support System Design ... Mod-01 Lec-26 Design of Sheet Piles (Contd.) ...Author: matt hallowell
https://www.fhwa.dot.gov/bridge/tunnel/pubs/nhi09010/tunnel_manual.pdf
and final ground support and lining systems are critical for the tunnel design, considering both ground conditions and the proposed method of construction. Perform the design in Preliminary and Final design phases. Interim reviews should be made if indicated by ongoing design issues. • Establish tunnel alignment, profile and cross-section
https://en.wikipedia.org/wiki/Q-system_(Geotechnical_engineering)
The Q-system for rock mass classification is developed by Barton, Lien, and Lunde. It expresses the quality of the rock mass in the so-called Q-value, on which are based design and support recommendations for underground excavations. The Q-value …
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