A geophone is a device that converts ground movement (velocity) into voltage.
Geophones typically comprise a spring-mounted magnetic mass moving within a wire coil to generate an electrical signal. The response of a coil/magnet geophone is proportional to ground velocity.
Geotechnical failure modes
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).
grains per foot
Grains per foot is a measure of the explosives loading in detonating cord. The term is in imperial units and cord from North America is often rated in these units.
A grain is a unit of weight with 1 gram = 15.43 grains.
The conversion from grams per meter to grains per foot is:
1 gram per meter = 4.7 grains per 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.