Research Article
Experiment and Application of NATM Tunnel Deformation Monitoring Based on 3D Laser Scanning
Table 3
Comparison of three filtering methods.
| | Section | Inverse distance weighting method (IDW) | Irregular triangulation method (TIN) | Improved Kriging method | | Crown settlement (mm) | Horizontal convergence (mm) | Crown settlement (mm) | Horizontal convergence (mm) | Crown settlement (mm) | Horizontal convergence (mm) |
| | K0 + 202 | 23.99 | 9.76 | 23.71 | 9.43 | 24.10 | 9.90 | | K0 + 207 | 32.03 | 7.72 | 31.46 | 7.54 | 32.10 | 7.80 | | K0 + 212 | 32.44 | 10.52 | 32.18 | 10.17 | 32.50 | 10.30 |
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