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http://onlinepubs.trb.org/Onlinepubs/hrr/1970/339/339-003.pdf
pects of design of the support systems for transportation tunnels. TYPES AND FUNCTIONS OF TUNNEL SUPPORT SYSTEMS The basic functions of a tunnel support system are to keep the tunnel stable and to make the opening usable. The specific purposes of support systems, however, depend greatly on the purposes of the tunnel.
https://rocscience.com/assets/resources/learning/papers/A-Two-Dimensional-Approach-for-Designing-Tunnel-Support-in-Weak-Rock.pdf
A TWO-DIMENSIONAL APPROACH FOR DESIGNING TUNNEL SUPPORT IN WEAK ROCK John H. Curran, University of Toronto Reginald E. Hammah, Rocscience Inc. Thamer E. Yacoub, Rocscience Inc. ABSTRACT 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.
https://www.researchgate.net/publication/333934619_Tunnel_Support_Design
For the design of the support for the tunnel deterministic and probabilistic . analysis was used. For deterministic wedge analysis 3 joint sets will be considered at a time. The .
https://www.sciencedirect.com/science/article/pii/S0886779815301589
Design of a tunnel support system to withstand the close field blasting impact would be impracticable (EM 1110-345-432, 1962). Therefore, this paper focuses on the far field response of a tunnel to an explosive blast, where the reflection of the blast wave from the tunnel boundary can cause rock fragments to fly into the tunnel (spalling).Cited by: 9
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 ...
https://apps.dtic.mil/dtic/tr/fulltext/u2/a219783.pdf
This report discusses tunnel design procedures based on various rock mass classification systems. A comparison is made between the tunnel support design based on the classical Ter-aghi rcak load method and the support selection based on the RSR Concept, the Geomechanic Classification. and the Q …Cited by: 21
https://en.wikipedia.org/wiki/Tunnel
A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal.
https://www.wsscwater.com/files/live/sites/wssc/files/pipeline%20design/C-26-2015.pdf
26. Tunnel Design Criteria. a. General. 1) This section presents soft ground tunnel design criteria only. The criteria for rock tunnels are to be determined on a project specific basis, subject to WSSC approval. 2) The primary objectives of tunnel design must satisfy the following requirements: stability of
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
http://www.umich.edu/%7Egs265/tunnel.htm
The steep angle of the bedding planes with respect to the tunnel will result in the wedge-shaped rock body (aed) sliding into the tunnel and putting stress on the support (ac). The lateral force, P, can be estimated from the mass of the sliding rock body and the angle which it makes with the tunnel support.
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