Davor Antoljak

Dr. Davor Antoljak

Croatian Hydrocarbon Agency, Zagreb, Zagreb, Grad, Croatia

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 February 2023 in Applied Sciences
Verified
Journal Article
Open access
PDF file
DADavor Antoljak
Davor Antoljak
DKDalibor Kuhinek
Dalibor Kuhinek
TKTomislav Korman
Tomislav Korman
Trpimir KujundzicTrpimir Kujundzic
Trpimir Kujundzic
A method based on extensive laboratory and field measurements was developed to determine the dependence of specific rock cutting energy (SEc) on specific drilling energy (SEd) for machines with different operating and design characteristics and similar breaking mechanics. Laboratory measurements were performed on a linear rock cutting device and a laboratory drill, using a measurement system to measure electrical power and cutting forces using force/torque transducers. Field power consumption measurements were performed on a chainsaw cutting machine and a hydraulic rotary drill under real working conditions in the dimension stone quarries. The analysis of the measured results confirmed the strong dependence of the specific rock cutting energy on the specific drilling energy and confirmed that laboratory devices can be used to simulate actual rock cutting and drilling process. In addition, the results are applicable in the dimension stone exploration and exploitation phase in order to assess and reduce energy consumption by optimizing the operating parameters of the chain cutter and/or the hydraulic rotary drill.