Kindly do this estimate with your designing excel visual basic software that shows diagram of holes and angle of inclination for me.
Given the following information below;
For production holes drill bit diameter = 115 mm
Burden = 2.9 m , Spacing = 3.2 m, Depth = 6.8 m
Presplit holes drill bit diameter = 102 mm
Burden from last row = 1.8 m or 1.8 m
Spacing = 1.2 m Angle of inclination = 80 degrees
Depth = 12 m
Another presplit holes
Drill bit diameter = 89 mm
Burden from last row to presplit row = 2 m
Spacing = 1.1 m
Depth = 6 .8 m