Of a flammable liquid is the lowest temperature at which it can form an ignitable mixture in air.
Rock that is projected outside the blast clearance zone or outside the site limits must be classed as flyrock.
Explosives having more Bubble energy throw out more fly rock than the ones where strain energy dominates.
Blasting parameters like burden, spacing, charge per hole, stemming, and delay interval play an important role in the throw of the blast. Burden should be selected to take into account the crater effect where in rocks get thrown out from cavities or weak zones in the bench. There should also be adequate delay between rows of holes to allow room for the rock to swell and displace previously blasted material.
Foreign Bodies (Tramp Material)
Foreign Bodies (Also known as Tramp Material) not intended to be present in a process (such as bolts, nuts, gravel, etc), that can have an adverse effect on the process and may cause an undesired event or deviation from the design intent.
The size distribution of material left in the muck pile after the blast.
A face or void aligned at the end of the rows of the blast.
Pertaining to heat energy extracted from reservoirs in the earth’s interior.
Grams per metre. Common expression of core loading of detonating cords. (1 gm/m = 4.7 grains/foot).
Oscillatory movement of the ground caused by the passage of seismic waves.
Ground vibration is typically measured as a velocity of ground motion in millimeters per second using a seismograph.
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
MAY 11-15, 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.