2949775917

282

TABLE 6 cont. TABELA 6 cd.

1	2	3	4	5	6
Spacing	0.2-2.5	0.4-2.5	0.2 - 2.5	4	m
Burden	1.5	1.5	1.5	3.6	m
Number of holes in a stopę	14 400	20 200	25 900	227	-
Length of holes	6-17.5	6-9.5	4.3-7.6	86	m
Total length of holes in a stopę	175 320	156 000	158 400	19 500	m
Cost of production drilling	3	3	3	8.2	$/m
Total cost of production drilling in a stopę	517 000	468 000	475 000	16 000	$
ANFO consumption	328	292	296	271	Ton
Primer consumption	25 070	22 320	22 660	2 720	Cartridge
Cordtex consumption	270 000	240 000	244 000	48 800	m
Total cost of explosives	561 000	499 500	507 000	155 000	$
Total costs	1 140 000	1 091 000	1 167 200	470 000	$
Volume of extracted ore from excavation of drifts	4 860	9 720	14 580	12 600	In situ m^3
Volume of blasted ore	278 640	273 780	268 920	270 900	In situ m^3
Total volume of extracted ore	283 500	283 500	283 500	283 500	In situ m^3
Cost of extraction	4	3.8	4.1	1.7	$/m^3

drilling system due to $US/m³ of in situ ore is seen to create simple situation of comparing of executions (Tab. 7).

TABLE 7

Results of designing with different ore body and production block’s condition

TABELA 7

Wyniki projektowania z różnymi zasobami rud i warunkami bloku produkcji

Dissimilar cost [$US/m^3)]				Height [m]	Thickness [m]
P	r3	r2	Ri
1	2	3	4	5	6
2.9			3.7	30	10
2.5	-	-	3.7	40	10
2.3	-	-	3.9	50	10
2.1			3.7	60	10
2			3.7	70	10
1.9	-	-	3.8	80	10
1.9	-	-	3.7	90	10
2.7	-	-	3.5	30	15
2.3	-	-	3.6	40	15