Glossary


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A

Australian Explosives Code

Australian Explosives Code for the Transport of Explosives by Road and Rail.

This document provides guidance for all aspects of explosives transport and is called by the regulations in most states

AEC Cover

Authority Holder

the person who has applied for and received a licence from the Regulator after having successfully undergone police and PMV checking.

Authorized Person

The person authorized by the regulatory authority having jurisdiction, or authorized by management to carry out a particular duty.

Axially

In a direction away from a centre point.

B

Back Break

Ground broken beyond the design line of blast holes most recently detonated.

overbreak

Overbreak on the right wall of a large underground excavation.

Ballistic Disk

Ballistic Discs provide a safe and effective way of remotely clearing hang ups and upstanding rill in draw points and stopes. When detonated a ballistic disc produces a large steel slug that is propelled at hypersonic velocity (2000-2600 m/s). The kinetic energy transferred on impact, up to 60 MegaJoules with the BD514, shatters the target area. As accurate aiming is paramount, provision for
a laser aiming attachment is fitted to all disc faces.
Ballistic Disc use in underground mining enables a true "non-stope entry" method of safely removing hang ups. Accordingly Ballistic Disc use is mandatory in several Australian underground mines. Ballistic Discs further aid safe underground operations as they permit the abortion of firing at any stage, and safe recovery of an aborted or misfired round.

AET Disk

Bell Wire

Insulated wires (usually of a lighter gauge than the firing cables) used between the detonator lead wires and the firing cables or for lengthening the lead wire of an electric detonator.

Bench Terms

Bench Terms

Bi-directional booster

A bi-directional booster is crimped onto detonating cord to increase the donor output of the cord.

The booster contains about 2 grams of either HMX or HNS explosives.

bi d booster 1

DNES Bi-dir boost

Blast Clearance Zone

The area around a blast that must be evacuated of personnel and equipment during the firing of a blast.

The clearance zone is identified on the firing plan which will also show blast guard positions and other information relevant to the firing.

clearance


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Skip Manage Drill and Blast Operations 5 DAY MASTERCLASS