Service condition of railroad corridors around the insulated rail joints

Zong, Nannan, Askarinejad, Hossein, Bandula, Thaminda, & Dhanasekar, Manicka (2013) Service condition of railroad corridors around the insulated rail joints. Journal of Transportation Engineering.

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Railroad corridors contain large number of Insulated Rail Joints (IRJs) that act as safety critical elements in the circuitries of the signaling and broken rail identification systems. IRJs are regarded as sources of excitation for the passage of loaded wheels leading to high impact forces; these forces in turn cause dips, cross levels and twists to the railroad geometry in close proximity to the sections containing the IRJs in addition to the local damages to the railhead of the IRJs. Therefore, a systematic monitoring of the IRJs in railroad is prudent to mitigate potential risk of their sudden failure (e.g., broken tie plates) under the traffic. This paper presents a simple method of periodic recording of images using time-lapse photography and total station surveying measurements to understand the ongoing deterioration of the IRJs and their surroundings. Over a 500 day period, data were collected to examine the trends in narrowing of the joint gap due to plastic deformation the railhead edges and the dips, cross levels and twists caused to the railroad geometry due to the settlement of ties (sleepers) around the IRJs. The results reflect that the average progressive settlement beneath the IRJs is larger than that under the continuously welded rail, which leads to excessive deviation of railroad profile, cross levels and twists.

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2 citations in Web of Science®

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ID Code: 57733
Item Type: Journal Article
Refereed: Yes
Keywords: Insulated rail joints, Railroad ties, Field inspection, Railroad track settlement, Joint gap
DOI: 10.1061/(ASCE)TE.1943-5436.0000541
ISSN: 1943-5436
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Engineering not elsewhere classified (090599)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2013 American Society of Civil Engineers
Deposited On: 03 Mar 2013 23:07
Last Modified: 31 Mar 2015 10:07

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