Derivation the soil oscillation law and determination of its parameters

Abstract

This paper gives an analysis the method for determining the parameters of soil oscillation law, suggested by Professor M. A. Sadovski as well as the level of its applicability for blasting with commercial explosives for the needs of mining and other economic activities. The applicability of this law was analyzed on examples of mass blasting at the Open Pit 'Drenovac' that are carried out for deposit mining. As the relation between the soil oscillation velocity and basic parameters affecting its magnitude, are the following: the amount of explosive, distance from the blasting site, characteristics of the rock material and type of blasting, the equation of M. A. Sadovski, where the oscillation velocity v is given in the form of of the function, is most frequently used: v = K . R-n , where R is reduced distance, and K and n parameters conditioned by soil characteristics and blasting conditions, thereby v is decreasing and convex function of variable R. To determine parameters in the equation of Sadovski, in addition to the common method of least squares, another model was applied. There by, it has been stated that both models can be used to calculate the oscillation velocity of the rock mass.

Keywords

• working environment
• blasting
• rock destruction
• seismic effect
• oscillation velocity
• soil oscillation law