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Title
Action
Application Technology - 3D Blast Modeling
The results of the HSBM 3D Blast Model analysis showed the blast pattern proposed by the DynoConsult would allow no fly to leave the blast area at this Midwest USA iron mine. Based on the results of the blast modeling the blast pattern was employed in the field. As predicted by the HSBM 3D Blast Model analysis no flyrock entered the lake and no material left the blast site.
Cast Blast Modeling
A view to identifying opportunities to improve operations.
DYNO 42™ Used for Vibration Control
DYNO 42 used to pinpoint best delay sequence for vibration reduction
Highwall Stability Improvement through Less Blast Vibration and Displacement
Highwall deterioration leads to potential hazards
Signature Hole Analysis for Vibration Control
The challenge for this mine is coming up with delay timing that gives optimum performance without exceeding the limit of 5 inches per second PPV at the well.
Sub-drill Reduction to Aid in Vibration Control
In July of 2016, at a granite quarry in the Southeast United States, current drill patterns were a 13x13 with 3’ of subdrill using a 5.75” blast hole. The average pounds per hole was 598. The seismograph, measuring vibration, is located within 700ft from the blast. SHA (Signature Hole Analysis) was being utilized to delay shots.
Sub-drill Reduction to Aid in Vibration Control
DYNO 42 software was used to come up with the delay that produces the best simulated peak particle velocity and frequency.
Vibration Modelling and Analysis Underpins Feasibility Study Accuracy
Vibration Modelling is used to enable accurate mine planning and suppor the feasibility study for an African mining project. This work forms an essential part of the mine planning aspect in the final feasibility study.