Blast Hole Drilling Rig

Blast hole Drilling is a technique used in mining whereby a hole is drilled into the surface of the rock, packed with explosive material, and detonated. The aim of this technique is to induce cracks in the inner geology of the surrounding rock, in order to facilitate further drilling and associated mining activity.

Drill and blast method is mostly used method for the excavation throughout the world. The method can be used in all types of rocks and the initial cost is lower than the mechanical method like TBM. This tunneling method involves the use of explosives. Drilling blast holes and loading them with explosives.

Drilling is a cutting process that uses a drill bit to cut or enlarge a hole of circular cross-section in solid material. There are four main methods for drilling rocks :percussion drilling, churn drilling, diamond drilling and rotary drilling.