SVIBOR - Project code: 2-01-154

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
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Project code: 2-01-154


COMPUTER SIMULATION OF BLASTING


Main researcher: BOŽIĆ, BRANKO (125442)


Assistants
Type of research: developmental
Duration from: 01/01/91. to 01/01/97.
Papers on project (total): 13
Institution name: Geotehnički fakultet, Varaždin (160)
Department/Institute: Department for open pit exploatation
Address: Hallerova 7
City: 42000 - Varaždin, Croatia
Communication
Phone: 385 (042) 41-532
Fax: 385 (042/45-587)
Summary: Successful blasting in open pits depends on physical and chemical properties of rocks and blasting method relating ot them. Optimal blasting is based on the results of test blasts, calculations with computer blasting simulations, and experimentally defined rock properties. The method of seismic refraction was used to determine the overall homogeneousness or anisotropy of rock, namely spatial distribution of compact and fractured zones within rocks. For each variant obtained from the velocities of longitudinal seismic waves it was then possible to find out parameters for blasting designs. Recent rock massif prospecting methods based on geophysical procedures of refraction seismic profiling. Results obtaidned are also used to define blasting parameters thorugh computer-simulated transfer of energy to the rock.

Keywords: blasting activities, rock massif, computer simulation, longitudinal wave velocity, shallow seizmic refraction method

Research goals: Optimal quantity and type of exsplosive and mining technique, based on explorations of a rock mass, are defined by: - breaking of rock into optimal fragments, - limits on vibrations at surrounding (urban) areas caused by blasting, - to get maximum effect using the minimum possible specific consumption of explosives. It is planned that numerical data of this investigation will be used by Mr. sc. Stjepan Strelec in his doctor thesis.
Other information about the project.
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Last update: 09/14/95
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