(Solved):   You are working as 'Blasting Engineer' for an opencast coal mine situated in the forest which ...

You are working as 'Blasting Engineer' for an opencast coal mine situated in the forest which is being worked with 15 m benches employing Electric rope shovels of 10 m³ for the removal of overburden mainly consists of sandstone. The anticipating conditions are of dry rock in the upper portions of overburden and wet conditions in lower portions of geologically disturbed overburden. Design the following blast parameters with neat sketches:

1. Burden
2. Spacing
3. Stemming
4. Sub-drilling
5. Charge factor (kg/m³)
6. Explosives and initiation system
7. Decking, if any
8. Initiation sequence and pattern. Assume the other necessary conditions.