Table 6 Results of underground burst... | Emerald Publishing

Table 6

Results of underground burst point positioning (m)

Sequence of blasting	Algorithm	X (m)	Y (m)	Z (m)	RMSE^a (m)	SEP (m)	Fitness value
1	Actual source coordinates	−8.6360	−5.1000	−15.0000	–	–	–
	Travel time-polarization angle positioning method	−8.9912	−5.2094	−15.1851	0.4152	0.2481	0.4820
	Positioning method without speed prediction	−9.2273	−5.1298	−15.2170	0.6306	0.5942	32.2007
2	Actual source coordinates	−0.5670	7.9950	−20.0000	–	–	–
	Travel time-polarization angle positioning method	−0.7701	8.1813	−20.3354	0.4341	0.2241	0.2863
	Positioning method without speed prediction	−0.8305	7.7905	−19.4042	0.6828	0.5946	34.4301
3	Actual source coordinates	0.0000	0.0000	−10.0000	–	–	–
	Travel time-polarization angle positioning method	−0.0526	−0.1158	−10.3986	0.4184	0.2461	0.0091
	Positioning method without speed prediction	−0.1168	−0.0037	−9.3631	0.6475	0.5506	15.0606

Sequence of blasting	Algorithm	X (m)	Y (m)	Z (m)	RMSE^a (m)	SEP (m)	Fitness value
1	Actual source coordinates	−8.6360	−5.1000	−15.0000	–	–	–
	Travel time-polarization angle positioning method	−8.9912	−5.2094	−15.1851	0.4152	0.2481	0.4820
	Positioning method without speed prediction	−9.2273	−5.1298	−15.2170	0.6306	0.5942	32.2007
2	Actual source coordinates	−0.5670	7.9950	−20.0000	–	–	–
	Travel time-polarization angle positioning method	−0.7701	8.1813	−20.3354	0.4341	0.2241	0.2863
	Positioning method without speed prediction	−0.8305	7.7905	−19.4042	0.6828	0.5946	34.4301
3	Actual source coordinates	0.0000	0.0000	−10.0000	–	–	–
	Travel time-polarization angle positioning method	−0.0526	−0.1158	−10.3986	0.4184	0.2461	0.0091
	Positioning method without speed prediction	−0.1168	−0.0037	−9.3631	0.6475	0.5506	15.0606

Note:

^aRMSE: root-mean-square error