Simulation Research for the Excavation Stability of III Brittle Rock Based on Vault Settlement Effect

Abstract:

Due to the brittle rock deformation is not obvious, and the destruction process has the features of sudden and concealment, it is often neglected in the field during construction. In this paper, Brittle rock was selected as the research object. Using the vault subsidence as monitoring parameters, the excavation process was simulated in single line tunnel by the finite element analysis tool of ANSYS, we obtain the maximum displacement of brittle rock and stress variation with time. Then the subsidence effect of different buried were analyzed, to determine the stability period of III Brittle surrounding rock. The research results can be used to guide the development of the monitoring standard, in underground engineering construction of the brittle rock.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 817-821
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.817
• Online since: September 2014
• Authors: Long Guo*, Ke Ling Liu
• Keywords: Brittle Rock, Excavation Stability, Vault Settlement Effect

References

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