20.500.12556/RUL-115361 Analiza napak na tirnicah diplomska naloga Analyses of rail defects graduation thesis V začetnem delu diplomske naloge se seznanimo s tirnico, ki je posebno oblikovan jekleni nosilec, del zgornjega ustroja železniške proge in najpomembnejši element železniških tirov, ki opravlja funkcijo vodenja vozil in direktno prevzema prometne obremenitve transportnih sredstev. Predstavimo železovo zlitino – jeklo, ki je osnovni material za izdelavo tirnic, podrobneje opišemo razvoj tirnic skozi zgodovino in postopek izdelave tirnic, predstavimo sestavne elemente in karakteristike tirnic ter opišemo najznačilnejše vrste tirnih napak in njihovih lastnosti. V drugem delu diplomske naloge pregledamo obstoječe podatke o evidentiranih napakah na tirnicah na celotnem železniškem omrežju Republike Slovenije in analiziramo napake na tirnicah po posameznih glavnih progah na železniškem omrežju. Na osnovi primerjave med glavnimi progami ugotavljamo, da enotirne proge izstopajo po številu napak na tirnicah na kilometer proge. Opazimo tudi, da ena dvotirna proga izstopa po številu napak glede na izkoriščenost proge. Visok negativni Pearsonov koeficient korelacije kaže, da se število napak na tirnicah linearno povečuje z zmanjševanjem temperature. Analiza korelacije pri vseh ostalih obravnavanih parametrih (obraba, starost tirnice, hitrost na progi, osna obremenitev, obremenitev proge in nagib nivelete) pa ne nakazuje na obstoj izrazite linearne odvisnosti med obravnavanimi parametri in številom napak na tirnicah. In the initial part of the thesis we acquaint with rails, which are specially design steel beams - parts of the substructure of the railway line and the most important elements of the railway tracks. The beams perform the function of managing the acquisition of vehicles and direct traffic loads of transport assets. We presented the iron alloy – steel, which is the basic material for the production of rails. We describe in detail the development of the rail and the process of making rails through history. We presente constituent elements and characteristics of rails and describe the most typical types of rail defects and their properties. In the second part of the thesis we review existing data on the recorded rail defects on the whole railway network of the Republic of Slovenia and analyze defects in rails for each of the main routes. We compare the main routes according to the number of defects on the rails. Upon analysis and comparision, we conclude that the single-track lines stand out by the number of defects per track kilometer. We also observe that one double track lines stands out by the number of defects on rails considering the utilization of the line. The analysis of the Pearson correlation coefficient shows that the number of defects on rails linearly increases with decreasement of the temperatures. For other observed parameters (rail wear, rail age, speed on the track, axle load, the volume of traffic expressed in gross tonnage and gradient), the correlation analysis does not show any particular linear dependence. gradbeništvo diplomska naloga VSŠ tirnica napake na tirnicah železniško omrežje RS analiza glavnih prog rail rail defects Slovenian railway network analyses of the main routes true false false [T. Habjan] Slovenski jezik Angleški jezik Diplomsko delo 2020-04-24 13:40:17 2020-04-24 13:40:19 2022-12-16 15:57:30 0000-00-00 00:00:00 2015 0 Ljubljana 2015 Ljubljana XVIII, 107 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 625.14 (043.2) 7112545 UNI_Habjan_Tomaz_2015.pdf UNI_Habjan_Tomaz_2015.pdf 1 6FFBC162FC5BDC11A363176F44E8CC09 609472299903e8d5dba47563ec222592babf7e7a35beb49afe8638b59c5d644d 7e5fae27-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=128176 Fakulteta za gradbeništvo in geodezijo 0 0 0