Research Article
Displacement Back Analysis for a High Slope of the Dagangshan Hydroelectric Power Station Based on BP Neural Network and Particle Swarm Optimization
Table 5
Comparison of back analysis values, BP values, and measured values.
| Excavation step | Monitoring point | Increment displacement (mm) | FLAC | BP | Measurement |
| Step 8 | M42RJC | 0.869 | 0.820 | 0.820 | M41RJC | 0.943 | 0.870 | 0.870 |
| Step 9 | M42RJC | 1.456 | 1.240 | 1.350 | M41RJC | 1.775 | 1.511 | 1.370 | M42RX | 2.386 | 2.285 | 2.300 |
| Step 10 | M42RJC | 0.138 | 0.131 | 0.150 | M41RJC | 0.143 | 0.143 | 0.120 | M42RX | −0.012 | −0.010 | −0.010 | M41RX | −0.078 | −0.100 | −0.100 |
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