Impact of total explosive weight detonated in blasting round on blast induced ground vibration

摘要

It is an established fact that the ground vibrations generated due to detonation of commercial explosives would mainly depend on explosive weight per delay, delay intervals, geology of the transmitting media, rock formation, direction of initiation and blast design parameters. A study was planned to assess the effect of total explosive fired in the blasting round on the magnitude of blast vibrations at four big coal opencast mines of India while keeping all other parameters constant. Specially designed blasts were conducted at dragline and shovel benches of the mines.