To the question of the factual quantity of simultaneously blow up borehole charges
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2018, Vol 82, Issue 2
Abstract
The basis for investigations to determine the actual number of simultaneously exploded wellbore charges is the regularity of determining the intensity of oscillations in the explosion of dispersed charges. The peculiarity of the considered oscillatory process is that as a result of the interaction of well charges with each other, the mass of a separate charge will be expressed by the effective mass, and the seismicity coefficient is a constant value for given conditions of mass explosions. The latter circumstance allows to confidently predict the seismic effect of a career explosion. For example, on the same horizon or in similar mining and geological conditions with sufficient accuracy for practical purposes. The coefficients Kc and n are interconnected by a functional dependence, which is determined on the basis of experimental studies, and later allows you to easily move from one coefficient to the values of another. All parameters included in the dependence to determine the intensity of ground oscillations in the explosion of a dispersed charge fit into the law of similarity of M.A. Sadovskyi with the explosion of chemical explosives. Using the result of experimental studies of the seismic action of short-delayed mass explosions in quarries, a technique has been developed to determine the actual number of simultaneously exploded well charges that are not provided for in the passport of a mass explosion. At the same time, in parallel with the mass explosion, the method provides for the explosion of a single borehole charge before or after the first one. This technique allows us to really determine the seismic effect of a mass explosion on protected objects.
Authors and Affiliations
A. A. Kuzmenko, O. M. Chala, O. S. Tarasiuk
Keywords
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