blast hole

A hole drilled into rock in which an explosive charge is to be placed.

References in periodicals archive ?

The process of ejection of stemming material from a blast hole is strongly dependent on the length of stemming material.

Experimental Study on the Blasting Performance of Water-Soil Composite Stemming in Underground Mines

High-pressure gas is ejected from the gas ports at specific directions and angles in the gas release tube and acts on the coal body around the blast hole. The direction and diameter of the gas ports are designed to control the gas flow direction and concentrate the energy according to common engineering practices.

Increasing Permeability of Coal Seam and Improving Gas Drainage Using a Liquid Carbon Dioxide Phase Transition Explosive Technology

Due to the fact that the blast holes studied in this paper are small in size and large in amount, it is inconvenient to build the blast hole model through the method of explosion load exertion in three-dimensional model.

Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns

The deals will allow the buyer to tap the rotary blast hole drilling industry and enter target markets in eastern Australia and southern Africa.

Mincon buys majority stakes in Rotacan, ABC Products, Omina Supplies

When Guido acquired this proprietary technology, it was originally designed for drilling blast holes in open pit mining.

J.N. Precise moving mountains bit by bit

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).

Atlas Copco receives SEK70m drill rig order in Brazil

ft of manufacturing space, Bucyrus manufactures walking draglines, electric mining shovels and/or rotary blast hole drills.

Dig it! Bucyrus moves the earth with castings: this surface mining industry OEM uses casting design as a tool to increase the productivity of its shovels and draglines, moving more earth per second than anyone in the world

The man said he later dug up a shell measuring 1 cm in diameter and 6 cm long from the blast hole. The shell was buried about 25 cm deep, he said.

Shell from U.S. Okinawa base lands 2 meters away from farmer

According to Mitsui Mining officials, the brick wall collapsed while the workers were digging a blast hole for dynamite.

5 workers die refurbishing Okayama copper refinery

10 inch single pass blast hole drill along with initial spares for 2 years / 4000 hours for nmdc limited, bacheli complex

Supply, Supervision Of Assembly And Commissioning Of One No. 10 Inch Single Pass Blast Hole Drill Along With Initial Spares For 2 Years/4000 Hours For Nmdc Limited, Bacheli Complex

"The initial trials of which have seen our clients reduce their average blast hole deviation by up to 60%, which has in turn delivered an estimated reduction in dilution of up to 30%," Beilby said.

Minnovare Launches the Production Optimizer System

As the man-lift operator progressed across the face loading the blast holes, the wedged shock-tube stretched and broke (snapped) causing a pre-detonation of a blast hole.