Influence of Confining Pressure on the Combustion Dynamics of Selected Explosives

Rockburst and methane prevention are methods of rock mass destruction. The use of explosives can reduce these hazards in the immediate bore hole. Currently in the Central Mining Institute intensive research in creating new charges explosives and blasting methods which weaken rock mass is underway. One condition of effective rock mass destruction is intensive rock cracking. The effectiveness of such preventions methods dictates activity destruction and penetrating explosive gases. A complex testing device was designed and constructed for the assessment of dynamic pressure increase of explosive gases. This allows confining pressure in the explosive material's surroundings to be changed. This article presents the complex testing device and the results of confining pressure influence on explosive dynamics. According to the authors the results open new possibilities for the use of explosives, creating new charge explosives and their methods of use.