Research on Effects of Blast Casting Vibration and Vibration Absorption of Presplitting Blasting in Open Cast Mine

Table 3

Location of detection points and blast vibration strength.

Detection point	- mm/s	- mm/s	- mm/s	Resultant mm/s	DDPBS m	GEL kg	MECPDE kg	Remarks
H1-2	14.1	11.1	10.8	17.4	350	960000	10000	Back
H1-3	10.4	16.8	7.8	17.9	550	960000	10000	Back
H1-4		4.3	9.9	10	800	960000	10000	Back
H1-5	1.7	2.3	3.8	3.9	1215	960000	10000	Back
H1-6	1.1	1.9	2.8	2.9	1800	960000	10000	Back
H2-1	104.7	149.7	124.3	181.3	100	780000	15000	Back
H2-2	31.7	56.5	32.7	55	200	780000	15000	Back
H2-3	11.8	17.3	16.3	20.4	300	780000	15000	Back
H2-4	10.8	13.9		18.7	500	780000	15000	Back
H2-5	4.5	3.9	3.7	7.9	800	780000	15000	Back
H2-6	4.2	2.5	2.3	5.4	1000	780000	15000	Back
H2-7	17.4	30	22	41.1	380	780000	15000	Back
H3-1	66.7	69.4	59.8	87.4	162	1300000	15000	Back
Y1-1	28.6	13.5	29.1	30.3	574.9	960000	10000	Right
Y1-2	19.6	12.1	30.6	31.1	604.6	960000	10000	Right
Y1-3	12.6	5.59	12.4	14.5	800	960000	10000	Right
Y1-4	8.51	3.05	8.51	10.3	826.6	960000	10000	Right
Y3-1	65.6	70.9	70.8	118	200	1300000	15000	Right
Y3-2	23.3	28	25.5	50.7	350	1300000	15000	Right
Y3-4	10.1	5.8	—	17.5	550	1300000	15000	Right
Y3-5	6.5	2.4	3.7	10.7	650	1300000	15000	Right