Research Article
Experiment and Application of NATM Tunnel Deformation Monitoring Based on 3D Laser Scanning
Table 2
Comparison of test results.
| | Section | Traditional measurement methods | 3D laser scanning technology | | Crown settlement (mm) | Horizontal convergence (mm) | Crown settlement (mm) | Horizontal convergence (mm) |
| | K0 + 202 | 36.77 | 12.90 | 24.10 | 9.90 | | K0 + 207 | 34.17 | 15.14 | 32.10 | 7.80 | | K0 + 212 | 35.98 | 15.82 | 32.50 | 10.30 |
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