Research Article
Back-Analysis of Parameters of Jointed Surrounding Rock of Metro Station Based on Random Forest Algorithm Optimized by Cuckoo Search Algorithm
Table 7
Comparison of back-analysis results.
| | | True value | Back-analysis results (PSO) | Back-analysis results (GA) | Back-analysis results (RF-CS) | Error (%) | | PSO | GA | RF-CS |
| | Jcoh (MPa) | 0.52 | 0.56 | 0.56 | 0.55 | 7.69 | 7.69 | 5.77 | | Jdila (°) | 35 | 38.03 | 38.35 | 36.44 | 8.66 | 9.57 | 4.11 | | Jfric (°) | 30 | 31.76 | 32.29 | 30.96 | 5.87 | 7.63 | 3.20 | | Jten (MPa) | 0.11 | 0.12 | 0.12 | 0.12 | 9.09 | 9.09 | 9.09 | | Jdd (°) | 146 | 160.09 | 158.69 | 151.04 | 9.65 | 8.69 | 3.45 | | Jdip (°) | 19 | 20.24 | 20.08 | 19.94 | 6.53 | 5.68 | 4.95 |
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