Vizualna procjena čvrstoće uzoraka na primjeru vapnenaca iz Istre

master's thesis

• Title: Vizualna procjena čvrstoće uzoraka na primjeru vapnenaca iz Istre : diplomski rad
• Title (english): Visual approximation of strength of samples based on limestones from Istria : master's thesis
• Author: Tin Berghaus
• Mentor: Ana Maričić (mentor)
• Mentor: Davor Pollak (mentor)
• Mentor: Vlatko Gulam (pomoć pri izradi, neposredni voditelj)
• Committee member: Ana Maričić (predsjednik povjerenstva)
• Committee member: Zlatko Briševac (član povjerenstva)
• Committee member: Dario Perković (član povjerenstva)
• Committee member: Davor Pollak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mineralogy, Petrology and Mineral Resources); Zagreb
• Defense date and country: 2023, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Geological Engineering

Abstract

U diplomskom radu na 96 uzoraka, šest varijeteta vapnenaca iz Istre provedeno je mikroskopsko određivanje značajki uzoraka, vizualno određivanje čvrstoće uzoraka i mjerenje brzine prolaska P – valova kroz uzorke. Koristeći determinirane stijenske značajke vapnenaca i vrijednosti brzina prolaska P – valova kroz uzorke, izračunata je jednoosna tlačna čvrstoća i napravljena je klasifikacija uzoraka. Uzorci su klasificirani prema IAEG (1979), ISRM (1981) i ISO (2003) klasifikacijama. Uzorci četiri od ispitanih šest varijeteta su ispravno klasificirani prema sve tri klasifikacije. S obzirom na dobivene rezultate, metoda se pokazala uspješnom za stijene, čija vrijednost jednoosne tlačne čvrstoće prelazi 100 MPa.

Abstract (english)

In this thesis tests were conducted on 96 samples of 6 types of limestones from Istria. These tests included microscopical determination of sample characteristics, visual determination of rock strength and measurments of P – wave velocity travelling through samples. Determined characteristics of limestones and measured values of P – wave velocitiy, were used for calculation of uniaxial compressive strength. Using these calculated values, classification of samples was conducted. Samples were classified using IAEG (1979.) classification, ISRM (1981.) classification and ISO (2003.) classification. Four out of six types of limestone were classified correctly, according to all three classifications. Based on achieved results, method has proven sucessful for rocks, which have uniaxial compressive strength over 100 MPa.

• Keywords: karbonati; jednoosna tlačna čvrstoća; stijenske značajke; brzina P – valova; klasifikacija
• Keywords (english): carbonate rock; uniaxial compressive strength; rock characteristics; P – wave velocity; classification
• Language: croatian
• URN:NBN: urn:nbn:hr:169:977325
• Study programme: Title: Geological engineering; specializations in: Hydrogeology and engineering geology, Environmental geology; Course: Hydrogeology and engineering geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka geološkog inženjerstva (magistar/magistra inženjer/inženjerka geološkog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Public note: Pomagao pri izradi i: Nedeljko Stanić, geološki tehničar, HGI.
• Created on: 2023-01-25 18:14:04