blast hole


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blast hole

A hole drilled into rock in which an explosive charge is to be placed.
References in periodicals archive ?
The software's simulation function shows blast hole loading using different materials and densities, and calculates for a user the volumes for the design with the option to compile a report.
The deals will allow the buyer to tap the rotary blast hole drilling industry and enter target markets in eastern Australia and southern Africa.
Length of the half barrels after the blast/Initial length of the blast holes x100(Figure 7).
They'll be concentrating primarily on the domestic market in branding themselves as the only Canadian manufacturer of rotary blast hole bits.
The Swedish industrial productivity solutions provider Atlas Copco said on Thursday (16 March) that it has won an order for 11 blast hole drill rigs from Brazilian mining company Companhia Vale do Rio Doce (CVRD).
30am: Commandos blast hole in the school wall to aid hostage escape.
According to Mitsui Mining officials, the brick wall collapsed while the workers were digging a blast hole for dynamite.
The man said he later dug up a shell measuring 1 cm in diameter and 6 cm long from the blast hole.
Minera Panama, a subsidiary of Canada's Inmet Mining, is buying a package of a total nine machines from Atlas Copco including Pit Viper rotary blast hole drill rigs, Flexi-Roc surface drill rigs, related services and simulator training.
Tenders are invited for Hiring of hemm for removal of ob including blast hole drilling, blasting, excavation, loading and transportation of all kinds of soil rocks, broken rocks, hard rocks, extraneous material including mixed soil, mixed hard soil, clay soil, pebbles, stone etc
Most of the holes loaded with this product and technology failed to perform properly because the stemming material used by the mine sank into the emulsion column, causing the down lines to either sink into the blast hole or to break, depending on the amount of slumpage that occurred.