Research Article
A Novel Intelligent Method for Predicting the Penetration Rate of the Tunnel Boring Machine in Rocks
Figure 7
The Tij values induced by the five four-factor RVM-PSO models for the cases of (a) i = 1, (b) i = 2, (c) i = 3, (d) i = 4, and (e) i = 5.
| (a) |
| (b) |
| (c) |
| (d) |
| (e) |