Development and Application of Blast Casting Technique in Large-Scale Surface Mines: A Case Study of Heidaigou Surface Coal Mine in China

Table 2

Statistical predicted error rate of blast casting muck pile effect.

	Prediction value		Actual value		Error rate (%)
	LC	ECR	LC	ECR	LC	ECR	Curve
Average	1.2	0.28	1.18	0.31	1.69	9.13	4.15
	1.3	0.31	1.26	0.23	3.17	33.77	4.97
	1.23	0.27	1.19	0.26	3.36	1.98	3.49
	1.21	0.26	1.13	0.26	7.08	1.13	2.99
	1.17	0.25	1.13	0.28	3.54	9.50	5.68
	1.19	0.28	1.2	0.34	0.83	17.13	3.43
	1.21	0.29	1.17	0.35	3.42	16.40	4.69
	1.2	0.31	1.17	0.37	2.56	16.51	4.25
	1.21	0.3	1.24	0.36	2.42	16.00	3.59
	1.22	0.3	1.15	0.32	6.09	7.52	4.28