Mining Engineering > GATE 2025 > Blasting Cost
In a surface mine, blasting is carried out using electronic detonator and cartridge emulsion explosive with following details:
Burden =3.5m
Spacing =4.5m
Bench height =10.0 m
Subgrade drilling =1.0 m
Stemming =4.0m
Linear charge concentration =16 kg/m
Cost of one detonator = Rs. 800
Cost of explosive = Rs. 30/kg
The cost of blasting material per cubic meter of blasted rock, in Rs., is ______ (rounded off to 2 decimal places)
Burden =3.5m
Spacing =4.5m
Bench height =10.0 m
Subgrade drilling =1.0 m
Stemming =4.0m
Linear charge concentration =16 kg/m
Cost of one detonator = Rs. 800
Cost of explosive = Rs. 30/kg
The cost of blasting material per cubic meter of blasted rock, in Rs., is ______ (rounded off to 2 decimal places)
Correct : 18.42
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