Research Article
Structure Strengthening Method for Enhancing Seismic Behavior of Soft Tunnel Portal Section
Table 4
Decrease rate of longitudinal strain.
| | Section | Case 2 (%) | Case 3 (%) | Case 4 (%) |
| | A | 9.97 | 16.98 | 21.37 | | B | 9.30 | 14.37 | 17.04 | | C | 5.37 | 10.69 | 14.01 | | D | 3.57 | 6.45 | 8.34 | | E | 1.51 | 2.49 | 3.68 |
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