Načini sanacije drvenih i betonskih pragova

undergraduate thesis

• Title (english): Repair systems of wooden and concrete sleepers
• Author: Mihovil Tomić
• Mentor: Stjepan Lakušić (mentor)
• Committee member: Josipa Domitrović (predsjednik povjerenstva)
• Committee member: Stjepan Lakušić (član povjerenstva)
• Committee member: Ivica Stančerić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Transportation Engineering); Zagreb
• Defense date and country: 2019-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Transportation

Abstract

Željeznice su danas veoma siguran oblik transporta, a tu činjenicu duguju prisilnom vođenju po metalnom putu. Tako se većim dijelom eliminira ljudski faktor upravljanja vozilom, no stvaraju se drugi problemi, poput konstantne potrebe provjere ispravnosti te sanacije složenog kolosijeka. Da bi željeznice u današnjem svijetu mogle konkurirati visoko razvijenom cestovnom prometu, moraju biti u mogućnosti prevoziti velikom brzinom ogromne količine tereta ili ljudi odjednom što dovodi do ubrzanog trošenja elemenata željeznice te se povećava važnost saniranja svih eventualnih oštećenja u željezničkom sklopu. Upravo će se u ovom radu obrađivati teme vezane za načine sanacije drvenih i betonskih pragova. Cilj je predstaviti ulogu i vrste samih pragova, objasniti načine na koje dolazi do njihovog trošenja i oštećivanja, prezentirati načine i razloge sanacije oštećenih pragova te obraditi trajnost tih sanacija. Željeznički prag je u svojoj osnovi podloga za tračnice te je kao takav dio gornjeg ustroja kolosijeka. Tehnologija sanacije pragova najviše je napredovala u pogledu sanacije tirfonskih rupa, jer su to mjesta posebno osjetljiva na mehanička oštećenja i propadanje, te se tim metodama sanacija pridaje posebna pozornost u ovom radu.

Abstract (english)

Today railways are one of the safest possible means of transportation, that fact railways owe to their definition of traffic means forcefully guided on metal tracks. That kind of forced guidance eliminates human factor of steering the vehicle, but it also makes other problems, like constant need to check and maintain complicated railroad. In todays world to make the railways compatible with highly developed road traffic, it is imperative that they can transfer large quantities of people and cargo with high speed. It is because of these heavy loads, and high speeds track tend to wear down much faster than they used to. The importance of anticipating and repairing all possible damage and wear in a complex railway assembly is increased, as well as the need to minimize the risks of failure of crucial parts of a complex railway assembly. This thesis will cover topics related to the ways of repairing wooden and concrete sleepers. The aim is to present the roles and types of sleepers themselves, to explain the ways in which they are worn and damaged, to present reasons for repairing, and to compare the durability of those repaired sleepers. Railway sleepers repair technology has advanced the most in direction of repairing screw spike holes, because they are particularly vulnerable to mechanical damage and deterioration.

• Keywords: željeznica; drveni i betonski pragovi; sanacija; održavanje
• Keywords (english): railways; wooden and concrete sleepers; maintenance; reparation
• Language: croatian
• URN:NBN: urn:nbn:hr:237:266630
• Study programme: Title: Civil Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-12-02 08:39:18