Blast Training International

Pertaining to heat energy extracted from reservoirs in the earth’s interior.

Where additional blastholes are drilled between those on the designed pattern to increase energy along the row.

A flexible plastic tube which is placed into a blast hole before product is loaded into the tube, providing protection from water or broken ground.

A plastic funnel which is placed in the collar of a hole, allowing product to be loaded, but preventing fallback of dirt or water ingress.

Blasting components which provide the transmission of signal, control of delay timing and the initial explosive energy within the blast hole.

In its original position or place.

Is the delay time between rows.

Is the delay time between holes within a row.

Job safety analysis (JSA), also known as job hazard analysis (JHA), is a safety management tool in which the risks or hazards of a specific job in the workplace are identified, and then measures to eliminate or control those hazards are determined and implemented.

The JSA process begins with identification of the potential hazards or risks associated with a particular job. Once the hazards are understood, the consequences of those hazards are then identified, followed by control measures to eliminate or mitigate the hazards.

The end result of a JSA is an easy to understand document that can be shared with workers as part of pre-job and safety meetings, and/or included as part of worker job descriptions. The JSA process can be used to help refine safe work procedures described in safety manuals or standard operating procedures, and the JSA document can serve as a useful tool in training new employees.

Load or Charge rule define how holes are to be loaded based on the condition of the hole (depth, water, wet walls).

When applied to charge patterns, charge rules create hole specific load definitions describing all the explosives and inert decks and the in-hole initiation system for all holes in the charge pattern.

Charge rules are derived from charge standards. Local copies of charge rules are saved against charge patterns to prevent subsequent changes altering the charge detail.

Charge rules are drill diameter specific, this means that a charge pattern needs to have the same diameter blast hole.
This is a safety requirement as minimum stemming for flyrock control is directly related to blast hole diameter.