Some Models for Determination of Parameters of the Soil Oscillation Law during Blasting Operations

Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić and Čedomir Beljić
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Suzana Lutovac: Faculty of Mining and Geology, Djušina 7, Belgrade 11000, Serbia
Dragan Medenica: Volmont Ltd., Ustanička 128a, Belgrade 11000, Serbia
Branko Gluščević: Faculty of Mining and Geology, Djušina 7, Belgrade 11000, Serbia
Rade Tokalić: Faculty of Mining and Geology, Djušina 7, Belgrade 11000, Serbia
Čedomir Beljić: Faculty of Mining and Geology, Djušina 7, Belgrade 11000, Serbia

Energies, 2016, vol. 9, issue 8, 1-15

Abstract: In order to evaluate and control the seismic effect of blasting, as well as its planning, it is required to determine the soil oscillation law, with the strike/mining facilities to be protected. One of the most commonly used equations is that of M.A. Sadovskii, defining the law of alteration in the oscillation velocity of the soil depending on distance, the explosive amount, and conditions of blasting and geologic characteristics of the soil; all of this being determined on the basis of test blasting for the specific work environment. In the Sadovskii equation two parameters, K and n appear and they are conditioned both by rock mass characteristics and blasting conditions. The practical part of this study includes experimental investigations performed in the Veliki Krivelj Open Pit in the Bor District located in Eastern Serbia and investigations carried out during mass mining in the Kovilova?a Open Pit near Despotovac, Eastern Serbia. Thus this paper offers several modes for determination of parameters K and n in the Sadovskii equation. To determine the parameters in the Sadovskii formula, in addition to the usual least square method, two more new models were applied. In the models the parameters K and n were determined by applying the quotient of the relative growth of oscillation velocities and reduced distances for Model 2. The link between the parameters K and n is determined by applying the trapezoidal formula for finding the value of definite integral for Model 3. In doing so, it was noted that all three models can be used to calculate the oscillation velocity of the rock mass.

Keywords: working environment; blasting; seismic effect; oscillation velocity; soil oscillation law (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
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