Data related to a surface miner operation are given below - Drum width (m)=3.0 Average cutting depth (cm)=20 Average cutting speed (m/min)=25 Length of pit...

In a surface mine bench, overburden is removed by the shovel-dumper combination. For the dumper: Minimum number of dumpers required to avoid idle time of th...

A coal seam of uniform thickness 12 m is dipping at an angle 30° as shown in the figure. The ultimate pit is demarcated based on allowable instantaneous strippi...