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Advances in Civil Engineering
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2021
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Article
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Tab 2
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Research Article
Analysis of Stress and Deformation Characteristics of Deep-Buried Phyllite Tunnel Structure under Different Cross-Section Forms and Initial Support Parameters
Table 2
Physical and mechanical parameters of the surrounding rock.
Elastic modulus (MPa)
Density (kN/m
3
)
Cohesion (MPa)
Internal friction angle (°)
Poisson’s ratio
Surrounding rock
1.3 × 10
3
27.1
0.27
32
0.4