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master's thesis
Defleksija površine kolnika kao mjera njegovog strukturalnog stanja
Zagreb: University of Zagreb, Faculty of Civil Engineering, 2021. urn:nbn:hr:237:372115
Tomić, Mihovil
University of Zagreb
Faculty of Civil Engineering
Transportation Engineering

Institutional repository: Repository of the Faculty of Civil Engineering, University of Zagreb

Cite this document

Tomić, M. (2021). Defleksija površine kolnika kao mjera njegovog strukturalnog stanja (Master's thesis). Zagreb: University of Zagreb, Faculty of Civil Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:237:372115

Tomić, Mihovil. "Defleksija površine kolnika kao mjera njegovog strukturalnog stanja." Master's thesis, University of Zagreb, Faculty of Civil Engineering, 2021. https://urn.nsk.hr/urn:nbn:hr:237:372115

Tomić, Mihovil. "Defleksija površine kolnika kao mjera njegovog strukturalnog stanja." Master's thesis, University of Zagreb, Faculty of Civil Engineering, 2021. https://urn.nsk.hr/urn:nbn:hr:237:372115

Tomić, M. (2021). 'Defleksija površine kolnika kao mjera njegovog strukturalnog stanja', Master's thesis, University of Zagreb, Faculty of Civil Engineering, accessed 08 June 2024, https://urn.nsk.hr/urn:nbn:hr:237:372115

Tomić M. Defleksija površine kolnika kao mjera njegovog strukturalnog stanja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Civil Engineering; 2021 [cited 2024 June 08] Available at: https://urn.nsk.hr/urn:nbn:hr:237:372115

M. Tomić, "Defleksija površine kolnika kao mjera njegovog strukturalnog stanja", Master's thesis, University of Zagreb, Faculty of Civil Engineering, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:237:372115

Metadata
TitleDefleksija površine kolnika kao mjera njegovog strukturalnog stanja
Title (english)Surface deflection as a pavement bearing capacity measure
AuthorMihovil Tomić
MentorTatjana Rukavina (mentor)
Committee memberMaja Ahac (predsjednik povjerenstva)
Committee memberSaša Ahac (član povjerenstva)
Committee memberTatjana Rukavina (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Civil Engineering
(Transportation Engineering)
Zagreb
Defense date and country2021-11-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Transportation
Abstract
Cilj diplomskog rada je ocjena strukturalnog stanja kolnika korištenjem indeksa krivulje defleksija. U prvom dijelu rada objašnjene su vrste kolnika i čimbenici koji utječu na funkcionalna i strukturalna svojstva kolničkih konstrukcija. Određivanje strukturalnog stanja prometnice provodi se mjerenjem defleksija kolnika koje je moguće provesti korištenjem različitih uređaja. Usprkos postojanju modernijih sustava, trenutno najčešće korištena metoda izmjere defleksija u Europi je uređaj sa padajućim teretom (FWD - Falling Weight Deflectometer). Interpretacija defleksija dobivenih FWD-om najčešće se radi izračunom koji se naziva povratna analiza, a izvodi se specijaliziranim računalnim programima. Dobivene defleksije također je moguće i ručno analizirati preko indeksa krivulje defleksija a što je prikazano na analizi projekta rekonstrukcije državne ceste DC7, dionica Kneževo – Beli Manastir. Usporedbom povratne analize provedene u izvornom projektu i analize indeksa krivulje defleksija provedene u ovom radu zaključeno je da se rezultati poklapaju, no da za preciznije određivanje parametara stanja kolničke konstrukcije, koje bi nam služilo kao podloga za izradu projekta sanacije, svakako bi bilo bolje provesti proračun unatrag računalnim programom i to uz precizno određivanje debljine slojeva GPR-om i istražnim jamama. Indeksi krivulje defleksija mogu biti vrlo korisni ukoliko imamo nepotpune podatke o debljini slojeva, ili kada ne posjedujemo računalni program za povratnu analizu.
Abstract (english)
The diploma thesis aims to assess the structural condition of the pavement using the index of the deflection basin. The first part of the diploma thesis explains the types of pavements and factors that affect pavement structures' functional and structural properties. Determining the structural condition of the road by measuring pavement deflections can be carried out using different devices. Despite more modern systems, the most commonly used method of measuring deflections in Europe is the Falling Weight Deflectometer (FWD). Interpretation of deflections obtained by FWD, is most often done by a calculation called back-calculation analysis and is performed by specialized computer programs. Manually analyses of the obtained deflections via the index of the deflection basin curve can also be done. Such analyses are done within the diploma work, on the data from the project state road DC7, section Kneževo - Beli Manastir reconstruction. The main conclusion was that the results from backcalculation performed in the original project matched with those from diploma work. For a more accurate determination of the pavement structure parameters that would serve as a basis for the rehabilitation project, special software has to be used, together with precise determination of layer thickness by GPR and trial pits. Deflection curve indices can be very useful if we have incomplete layer thickness data or when we do not have a computer program for feedback analysis.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:237:372115
Study programmeTitle: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures
Course: Construction Management
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
Type of resourceText
File originBorn digital
Access conditionsClosed access
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Created on2022-04-11 07:26:11