Classification Prediction of Rockburst in Railway Tunnel Based on Hybrid PSO-BP Neural Network

Table 3

Rockburst data and prediction results of Laobishan tunnel.

Sample number	Actual grade	Model prediction level
		Hybrid PSO-BP	PSO-BP	BP
Q-1	II	II	II	II
Q-2	III	III	III	II
Q-3	III	III	III	III
Q-4	II	II	III	III
Q-5	III	III	III	III