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

Entry link: Australian Explosives Code

Authority Holder

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

Entry link: Authority Holder

Authorized Person

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

Entry link: Authorized Person

Axially

In a direction away from a centre point.

Entry link: Axially

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.

Entry link: Back Break

Backfill Sheet

Backfill sheets are provided to charging operations to enable over length holes to be brough back into tolerance with the design charge depth.

A complete backfill sheet contains the following information:

backfill sheets 1

 

Entry link: Backfill Sheet

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

Entry link: Ballistic 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.

Entry link: Bell Wire

Bench Terms

Bench Terms

Entry link: 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

Entry link: Bi-directional booster


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