The use of precision surveying, and advanced blast design software contributed to a highly successful close proximity blast in a quarry, where the crusher infrastructure was found in the immediate vicinity. A water tower was located only 30 m away from the bench face and a crusher was only slightly further away. Based on a comprehensive three-dimensional survey of the blast site by means of a detailed photogrammetric 3D model from drone imagery, the blast was designed for control. Boreholes were inclined and relocated according to geological conditions and varied burdens. The use of electronic detonators enabled controlled timing to get uniformed breakage at the critical side of the bench face. The shot was completely controlled without any collateral damage while simultaneously getting fragmentation of the muck pile as intended.
