Research Article
An Analytical Solution for Stress and Displacement Field for Arbitrarily Positioned Twin-Tunnel Excavation at Great Depth
Table 5
Circumferential stress owing to the longitudinal tension of unit force.
| | Distance | 2.1 | | 2.2 | | 2.4 | | | (°) | 180.0 | 93.1 | 180.0 | 91.2 | 180.0 | 90.3 |
| | Haddon’s | 8.689 | -1.001 | 6.106 | -0.962 | 4.423 | -0.924 | | Proposed | 8.946 | -1.067 | 6.010 | -0.963 | 3.991 | -0.889 | | Error(%) | 2.96 | 6.59 | 1.57 | 0.10 | 9.77 | 3.79 |
| | Distance | 2.6 | | 3 | | 4 | | | (°) | 180.0 | 89.6 | 180.0 | 88.9 | 0.0 | 88.8 |
| | Haddon’s | 3.768 | -0.905 | 3.264 | -0.886 | 3.066 | -0.883 | | Proposed | 3.359 | -0.861 | 2.998 | -0.848 | 3.035 | -0.871 | | Error(%) | 10.85 | 4.86 | 8.15 | 4.29 | 1.01 | 1.36 |
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