Blends containing more than 50% Emulsion generally need to be chemically gassed for sensitivity.
Block Slide Failure
A block slide is a translational slide in which the moving mass consists of a single unit or a few closely related units that move downslope as a relatively coherent mass.
Resembling a block in shape.
Bottom Fire Detonator
A pattern of holes adopted for blasting to a new level below an existing floor or below existing surface mining.
The ability of an explosive to break or shatter rock by shock or impact as distinct from gas pressure.
A blast hole which has been enlarged (chambered) to accommodate extra explosive over a portion of its length (usually at the bottom) by exploding a small charge.
The burden is the distance between a blasthole which is to be fired and the nearest void or free space.
Note that two burdens are defined, the drilled burden as shown in the diagram and the dynamic burden which is the true burden at the instant the hole fires.
The dynamic burden is influenced by both the drilled burden and the delay timing.
These units of competency are recommended for current Drill and Blast Engineers, Superintendents, Supervisors and Senior Shotfirers wishing to increase both their design and management skills.
Course assessment is by completion of classroom and online components and by assignment submission.
Class size is limited to eight persons on a first come basis.
Course leader is Peter Duniam BE. MPM. Director of Blast Management International with over thirty years industry experience.
5 DAY COURSE
February 17-21, 2020
$2,900 per person includes lunch each day, 500 page colour manual and statement of attainment for the completed competencies.
ENQUIRIES & BOOKINGS
Phone (07) 3348 5144
0409 001 186
Note this class is not suitable for persons without comprehensive drill and blast experience in either an engineering or operational role.