Prediction of Blasting Fragmentation Based on GWO-ELM

Table 1

Model training samples and prediction samples.

Sample sequence	Tensile strength	Compressive strength	Blast hole distance	Row spacing	Minimum resistance line	Super deep	Unit consumption	Average blasting size X50
	MPa	MPa	m	m	m	m	(kg•m^−3)	m
1	5.6	45.6	6.5	3.5	3.2	1	0.59	0.76
2	6.7	50.3	6.5	3.5	2.8	1.5	0.54	0.67
3	4.8	46.4	7	3.5	2.4	1.2	0.57	0.47
4	5.4	53.4	7	3.5	3.2	1.5	0.55	0.72
5	7.4	57.6	7	3.5	2.7	1	0.52	0.81
6	5.9	48.7	6	3	3.4	1.2	0.58	0.79
7	5.4	49.5	6	3	3.3	1.5	0.55	0.72
8	6.4	54.6	6	3	2.7	1	0.48	0.62
9	6.2	42.6	6.2	3.5	2.9	1	0.54	0.59
10	6.3	52.4	6.2	3.5	2.4	1	0.49	0.54
11	6.9	56.7	6.5	3.5	2.4	1	0.59	0.66
12	6.4	50.3	6.5	3.5	2.6	1.2	0.56	0.63
13	4.9	53	6.2	3.5	3	1.5	0.54	0.66
14	5	48.6	7	3.5	2.7	1.5	0.49	0.58
15	7.1	58.4	6	3	2.6	1	0.47	0.72
16	7	54.6	6.2	3.5	2.8	1	0.56	0.71
17	5.2	52.4	6.5	3.5	2.5	1.5	0.52	0.49
18	5.3	51.4	6	3	2.2	1.5	0.59	0.46
19	6.1	52.8	7	3.5	3.4	1.5	0.49	0.76
20	6.7	51.6	6.2	3.5	3.1	1.5	0.59	0.74