Optimal blasting parameters predicted by rock mass properties - engineering geological approach (CROSBI ID 474563)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Braun, Karlo ; Božić, Branko
engleski
Optimal blasting parameters predicted by rock mass properties - engineering geological approach
The paper deals with the results of explorations in the tectonic fabric of rock masses, results of geophysical exploration and the blasting parameters that have optimal effects in open pits and quarries. Three factors control the fragment size distribution: the rock structure, the quantity of explosive and its distribution within the rock mass. Results of engineering-geological research are significant for the optimization of blasting parameters. These data are showing an objective picture of rock mass, and they are as follows: statistic of density of discontinuities, determination of "GSI", Hoek-Brown empirical criterion for strength of rock mass and "in stiu" determination of mechanical parameters, including geophysical survey data. The strength of rock mass decreases with the increase in frequency of joints and the deromability of rocks depend on their orientation. It is the interaction between the rock mass and stresses generated due to explosive detonation, which may produce favorable or harmful blasting results.
engineering geology; rock mechanics; blasting
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Podaci o prilogu
307-311-x.
2000.
objavljeno
Podaci o matičnoj publikaciji
Explosives & blasting technique
Holmberg, Roger
Rotterdam : Boston (MA) : Taipei: A.A. Balkema Publishers
Podaci o skupu
1sr world conference on explosives & blasting technique
predavanje
06.09.2000-08.09.2000
München, Njemačka