Zavisnost specifične energije drobljenja o specifičnoj energiji rezanja stijena

master's thesis

• Title: Zavisnost specifične energije drobljenja o specifičnoj energiji rezanja stijena : diplomski rad
• Title (english): Dependence of specific crushing energy on specific cutting energy : master’s thesis
• Author: Dino Cerle
• Mentor: Trpimir Kujundžić (mentor)
• Committee member: Trpimir Kujundžić (predsjednik povjerenstva)
• Committee member: Gordan Bedeković (član povjerenstva)
• Committee member: Tomislav Korman (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mining and Geotechnical Engineering); Zagreb
• Defense date and country: 2016-09-19, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Mining

Abstract

Osnovni cilj ovog rada je utvrditi u kojoj mjeri fizikalno-mehanička svojstva stijena utječu na energiju
potrebnu za rezanje stijena, te analizirati zavisnost specifične energije drobljenja i specifične energije rezanja.
Laboratorijska ispitivanja specifične energije rezanja provedena su na pet uzoraka različitog mineralnog
sastava. Ispitivanja su provedena na uređaju za pravolinijsko rezanje stijena pri čemu su mjerene sve tri
komponente sile rezanja. Specifična energija rezanja dobivena je iz omjera energije utrošene na rezanje i
mase odlomka. Statističkom obradom podataka dobiveni su korelacijski odnosi prema kojima najveći utjecaj
na specifičnu energiju rezanja ima tlačna čvrstoća. Na temelju dobivenih rezultata i rezultata prijašnjih
ispitivanja određena je zavisnost specifične energije drobljenja o specifičnoj energiji rezanja.

Abstract (english)

Abstract: The main goal of this paper was to determine to what extent physical and mechanical properties of rocks
affect the energy used for rock cutting and to analyze the dependence of the specific crushing energy on the
specific cutting energy. The research activities of the specific cutting energy comprised 5 samples of different
mineral compositions. Cuts on the samples were made by means of the linear cutting machine. After each
cut all the three strength components were measured by means of the measurement converter. The specific
cutting energy was obtained from the ratio between the energy used for cutting and the sample mass. The
statistical data processing provided the correlation values, according to which the compressive strength has
the highest impact on the specific cutting energy and the specific crushing energy. Based on the obtained
results and the results of the previous research activities the dependence between the specific crushing energy
and the specific cutting energy was determined.

• Keywords: rudarstvo; fizikalno-mehanička svojstva; tlačna čvrstoća; energija rezanja; energija drobljenja
• Keywords (english): mining; physical and mechanical properties; compressive strength; cutting energy; crushing energy
• Language: croatian
• URN:NBN: urn:nbn:hr:169:514471
• Study programme: Title: Mining Engineering; specializations in: Mining engineering, Geotechnical engineering, Waste treatment and disposal; Course: Geotechnical engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka rudarstva (magistar/magistra inženjer/inženjerka rudarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2016-09-27 07:24:28