Blast Monitoring


How it works

BMT makes every ore blast more profitable.

BMT’s technology accurately measures blast movement to determine the actual location of the ore-body post blast.

This information enables blast engineers, production geologists and pit foremen to make better decisions on the ore-waste boundaries in order to minimise ore loss and dilution.

The process:

  1. Remotely locatable sensors (Blast Movement Monitor sensors or BMM sensors) are activated, programmed and installed in dedicated drill holes prior to blasting.
  2. Post-blast, an operator walks the muckpile with our hand-held detector to locate each BMM sensor and record the signal strength.
  3. This data is used by our dedicated software to calculate the depth and the precise 3-dimensional movement vector of each BMM sensor.
  4. Ore boundaries can then be quickly redefined to reflect the measured movement, allowing the production team to know the precise location of the ore and waste.

The result: Ore and waste can be separated more accurately, improving mine reconciliation and making every ore blast more profitable.


The benefits

BMT is about getting more from your resource.

The Blast Movement Monitoring System (BMM System) is the most accurate and profitable blast movement monitoring method available.

Reducing ore loss is pure profit.

You still mine the same amount of rock, send the same number of trucks to the plant, process the same amount of ore. The only difference is that with the BMM System, there is more mineral produced by the plant.

More revenue for an incremental cost.

By adding only a few cents per tonne to the cost of ore blasts, you can significantly reduce ore loss and dilution, improve reconciliations and potentially gain millions of dollars’ worth of extra mineral. Without BMM sensors, that value would be lost to the waste dump, never to be converted into revenue.

Accurately accounting for blast movement offers a genuine step change in mining efficiency. In the words of Placer Dome’s Vice President of Operations, “This seems to me one of those low-hanging fruits that are easy to collect.”

Blast movement and its effect on ore loss and dilution – and ultimately the economic consequences – are generally poorly understood within the mining industry, and can be difficult to accurately quantify. The BMM System enables a more accurate determination of ore/waste boundaries after blasting, and has the potential to significantly increase an operation’s profit. Case studies from thousands of blasts involving the BMM System indicate that hundreds of thousands of dollars per blast can be lost if the movement of ore/waste boundaries post blast is not measured accurately.

“The new technique allows us to recover ore from narrow zones that has been excluded from the reserves, which in our case in turn leads to an increase in net present value,”

Sandra Pfeiferberger, Geologist, Tallering Peak Mine, Western Australia

“The BMM System should become a standard that every mine will use.”

Johan Labuschagne, Mine Manager – Open Pits, Goldfields St Ives Gold Mine