Research Article
Creep Parameter Inversion and Long-Term Stability Analysis of Tunnel Based on GP-DE Intelligent Algorithm
Table 7
Comparison results of different algorithms.
| | Monitoring point | Time (d) | Monitoring displacement (mm) | GP-DE (mm) | Relative error (%) | GP (mm) | Relative error (%) | ANN (mm) | Relative error (%) |
| | 1 | 3 | 1.51 | 1.46 | 3.4 | 1.45 | 4.2 | 1.45 | 5.6 | | 12 | 6.03 | 5.86 | 2.8 | 5.81 | 3.7 | 5.96 | 6.4 | | 24 | 10.35 | 10.15 | 1.9 | 9.99 | 3.5 | 10.64 | 5.8 | | 48 | 16.17 | 15.77 | 2.5 | 15.77 | 2.9 | 15.75 | 6.1 |
| | 2 | 3 | 2.82 | 2.75 | 2.6 | 2.71 | 3.8 | 2.99 | 5.9 | | 12 | 9.47 | 9.18 | 3.1 | 8.99 | 5.1 | 10.02 | 5.8 | | 24 | 13.18 | 12.96 | 1.7 | 12.36 | 6.2 | 14.02 | 6.4 | | 48 | 17.73 | 17.34 | 2.2 | 17.07 | 3.7 | 18.32 | 6.7 |
| | 3 | 3 | 5.47 | 5.37 | 1.8 | 5.18 | 5.3 | 5.81 | 6.1 | | 12 | 12.70 | 12.37 | 2.6 | 12.27 | 3.4 | 13.51 | 6.4 | | 24 | 17.05 | 16.56 | 2.9 | 16.18 | 5.1 | 18.06 | 5.9 | | 48 | 20.41 | 19.70 | 3.5 | 18.44 | 6.4 | 21.75 | 6.6 |
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