Mechanical Behaviour of Shallow Tunnel in Unsymmetrical Strata

Shang Yang Yang

doi:10.4028/www.scientific.net/AMR.594-597.1210

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597Mechanical Behaviour of Shallow Tunnel in...

Mechanical Behaviour of Shallow Tunnel in Unsymmetrical Strata

Abstract:

Triaxial compression tests have been performed to determine the properties of the surrounding rock. The displacement and stress of surrounding rock have been analyzed according to Silin 2 at Yungui railway under three kinds of conditions: the initial state, excavation without supporting , and supporting after excavation.Plane strain FEM is established to analyze the stability of the surrounding rock. Contrasted the monitor measuring data,the results show that: the most unfavorable position in the tunnel is found at the ridge side of the arch; and the implementation of support to ensure the stability of surrounding rock, and the design of the early support approach to meet the safety requirements. The results have a certain significance for understanding the mechanical behavior of shallow tunnel in unsymmetrical strata

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Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

1210-1213

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.594-597.1210

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Online since:

November 2012

Authors:

Shang Yang Yang

Keywords:

Deformation, Mechanical Behavior, Numerical Simulation, Stability, Tunnel

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References

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