Interaction of Air Shock Waves with Parachute Stoppings in Mine Explosions
E. E. Mazepa1, P. I. Kusainov1, O. Yu. Lukashov2
1Tomsk State University, Tomsk, 634050 Russia
2Shahtekspert-Systemy, Kemerovo, 650065 Russia
Keywords: network of mine workings, methane explosion, air shock waves, mathematical model
Abstract
This paper presents the results of mathematical modeling of the propagation of air blast waves during methane explosion in mine workings taking into account their interaction with prefabricated parachute stoppings. Parachute stoppings are able to reduce the shock-wave intensity when the intensity of the incoming shock wave does not exceed the critical failure pressure of the stopping. The gas-dynamic method of calculating explosion-proof distances allows one to take into account parachute stoppings installed in various places of workings and to calculate the parameters of shock waves that have passed beyond the stopping.
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