Impact Modelling of Explosion of Mixture Explosive Charges on the Environment

Abstract

The present paper provides the modelling of the explosion of the charges of the traditional (trotyl) and new blended explosive substances: polymix GR1/8 (74 %) + KRUK2 (26 %), compolite GS6, polymix GR4-T10. As a result of the research, it has been established that when using TNT a specific impulse is formed, which is by 40 % more than an explosion of new mixed explosives, and the safe distance from the source of the explosion of such explosives is increased by 25 %–50 %. On the basis of the established dependences of excess pressure, the specific impulse on the type and mass of charge, as well as the distance from the epicenter of the explosion, an engineering method has been developed for calculating dangerous parameters of the explosion impact on the environment.

Zarządzanie parametrami oddziaływania materiału wybuchowego na masę gleby w wyniku użycia materiałów wybuchowych małej gęstości

“…Let the charge detonates instantly and the same average pressure is established throughout its volume , and the density of the explosion products is equal to the initial density of the explosive substance. The movement of soil explosion products is described by the laws of conservation of momentum, mass and internal energy, which for the explosion of a cylindrical charge have the form [7][8]:…”

“…For detonation products S i =0. The relations are performed for the components of the strain rate tensor: (7) The expansion of the explosion products occurs according to the binomial is entropy, i.e (8) The constant values А, В, n0, γ0in ratio (8) are calculated unambiguously based on the known characteristics of explosives [9].…”

Risk Assessment for the Development of the Exemplified Territories

“…Therefore, the most important and essential indicators that we propose to use to assess the risks of the demined territories are the following: demining of territories; efficiency of demining and disposal of remnants of military equipment, mines, etc. ; safety and efficiency of demining and disposal technologies; degree of contamination of demined territories after demining and disposal [5-8]; level of safety assessment of the population living in these territories; return of vital infrastructure [5][6][7][8][9][10][11][12][13].…”

“…• Return of vital infrastructure (х6) -60. It can be concluded that the most important indicator with a high severity of impact (RPN > 125) is the demining of territories [9][10][11][12][13]. It should be noted that it is difficult for specialists to assess the degree of contamination of the contaminated territories in terms of sanitary and epidemic hazards and the degree of danger to the population living in these territories.…”