Learning from the Ammonium Nitrate Vehicle Explosion at Angellala Creek
Long-Hole Survey Analysis in Underground Gold Mines
Measuring and modeling long-hole drilling and analyzing their accuracy at Canadian underground gold mines.
Medical Mitigation Model Development for Application in Terrorism Risk Assessment.
A model that simulates the medical response to a terrorist attack using explosives, based on severity and type of injury, is being developed as part of a comprehensive quantitative risk assessment of explosive terrorism risks to the US homeland.
Methods to Quantify Drilling Accuracy
The topic of this paper is the current methods used to quantify hole deviation. It details both cheap and expensive techniques that can be used to identify drilling inaccuracies in order to prevent flyrock, increased vibration, uneven floor and other undesired effects.
Modelling Complex Shock Tunnel for Shock Interaction and Transfer Testing
A working modelling of a complex geometry shock tunnel was generated for use in shock interaction and transfer testing of wall materials. The two purposes of this model are to understand how the shock waves are effected by the complex geometry and confirmation of the empirically found maximum charge size.
Modified Case Charge for Avalanche Control
A new method for avalanche control using high explosives is introduced. This new avalanche control technique is well-suited to mountain roads presenting several advantages over the existing methods: minimum deployment time, low cost, reduced probability of misfires and reduce operation time in the avalanche danger zone.
Objective Measurement of Cast Booster Performance
A series of different explosive compounds have been assessed with a Plate Dent Test. The results indicate that this method can provide objective measurement of booster performance, provided the booster configuration is also taken into consideration.
Optimal Delay Periods and Complex Timing Sequences Using Electronic Delay Detonators
Methods for establishing optimal delay periods using electronic delay detonators for differing rock types and blast outcomes.
Overcoming Emulsion Destabilization Caused by Common Contaminants
This paper describes how specially developed emulsifiers can give greatly improved emulsion stability in the presence of contaminants. The test work shows stability tests using ammonium nitrate doped with various levels of common organic and inorganic impurities. The results of successful industrial trials with these emulsifiers are also given.