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Advances in Civil Engineering
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Advances in Civil Engineering
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2018
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Article
/
Tab 4
/
Research Article
A New Unified Solution for Circular Tunnel Based on a Four-Stage Constitutive Model considering the Intermediate Principal Stress
Table 4
The post-peak failure radii and surface displacement when
.
Model
Transformation
EPM
1.165
1.000
1.000
1.357
EPSDM
1.336
1.295
1.122
1.786
ESM
1.418
1.418
1.218
2.010
EPBM
1.540
1.492
1.492
2.371
EBM
1.602
1.602
1.602
2.565