Research Article
[Retracted] Parameter Identification of 3D Elastic-Plastic Model for Tunnel Engineering Based on Improved Genetic Algorithm
Table 3
Identification results of GA-BP algorithm.
| | Cohesion (MPa) | Cohesion relative error (%) | Internal friction angle (°) | Relative error of internal friction angle (%) | Deformation modulus (GPa) | | Actual value | Identification value | Actual value | Identification value | Actual value | Identification value |
| | 0.20 | 0.18 | 10.00 | 23.8 | 20.05 | 15.76 | 2.0 | 2.08 | | 1.54 | 1.33 | 13.64 | 51.6 | 45.09 | 12.62 | 22.2 | 18.11 | | 1.82 | 1.89 | 3.85 | 55.8 | 48.35 | 13.35 | 27.6 | 31.77 | | Average relative error (%) | 9.16 | | | 13.91 | | |
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