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Stability of Unlined Elliptical Tunnels in Rock Masses

Rock Mechanics and Rock Engineering (2022) 55(11) 7307-7330
DOI: 10.1007/s00603-022-02996-4
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Abstract

•A state of art approach to evaluate the elliptical tunnel stability of Hoek–Brown rock mass.•Rigorous upper bound and lower bound solutions of elliptical tunnel stability are derived using advanced finite element limit analysis.•Comprehensive design tables and equations are proposed for stability evaluation.

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Shiau, J., Keawsawasvong, S., & Seehavong, S. (2022). Stability of Unlined Elliptical Tunnels in Rock Masses. Rock Mechanics and Rock Engineering, 55(11), 7307–7330. https://doi.org/10.1007/s00603-022-02996-4

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