Innovative and cost-effective rail track construction using recycled rubber

IF 4.4 1区 工程技术 Q2 TRANSPORTATION SCIENCE & TECHNOLOGY Railway Engineering Science Pub Date : 2024-09-05 DOI:10.1007/s40534-024-00352-6
Buddhima Indraratna, Yujie Qi, Trung Ngo, Rakesh Malisetty, Chathuri Kulappu Arachchige
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Abstract

Facing the high demand for faster and heavier freight trains in Australia, researchers and practitioners are endeavouring to develop more innovative and resilient ballasted tracks. In recent years, many studies have been conducted by the researchers from Transport Research Centre at the University of Technology Sydney (TRC-UTS) to examine the feasibility of incorporating recycled tyre/rubber into rail tracks. This paper reviews three innovative applications using recycled rubber products such as (1) a synthetic energy-absorbing layer for railway subballast using a composite of rubber crumbs and mining by-products, (2) using rubber intermixed ballast stratum to replace conventional ballast, and (3) installing recycled rubber mat to mitigate ballast degradation under the impact loading. Comprehensive laboratory and field tests as well as numerical modelling have been conducted to examine the performance of rail tracks incorporating these innovative inclusions. The laboratory and field test results and numerical modelling reveal that incorporating these rubber products could increase the energy-absorbing capacity of the track, and mitigate the ballast breakage and settlement significantly, hence increasing the track stability. The research outcomes will facilitate a better understanding of the performance of ballast tracks incorporating these resilient waste tyre materials while promoting more economical and environmentally sustainable tracks for greater passenger comfort and increased safety.

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使用再生橡胶建造轨道,创新且经济高效
面对澳大利亚对速度更快、重量更大的货运列车的高需求,研究人员和从业人员正在努力开发更具创新性和弹性的有砟轨道。近年来,悉尼科技大学交通研究中心(TRC-UTS)的研究人员开展了多项研究,探讨将再生轮胎/橡胶应用于轨道的可行性。本文回顾了使用再生橡胶产品的三种创新应用,例如:(1) 使用橡胶碎屑和采矿副产品的复合材料为铁路底层道碴提供合成吸能层;(2) 使用橡胶混合道碴地层替代传统道碴,以及 (3) 安装再生橡胶垫以减轻冲击荷载下的道碴降解。我们进行了全面的实验室和实地测试以及数值建模,以检验含有这些创新夹杂物的轨道的性能。实验室和现场测试结果以及数值建模显示,加入这些橡胶产品可提高轨道的能量吸收能力,并显著减轻无砟轨道的破损和沉降,从而提高轨道的稳定性。这些研究成果将有助于更好地了解含有这些弹性废轮胎材料的无砟轨道的性能,同时促进更经济、更环保的可持续轨道,以提高乘客舒适度和安全性。
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来源期刊
Railway Engineering Science
Railway Engineering Science TRANSPORTATION SCIENCE & TECHNOLOGY-
CiteScore
10.80
自引率
7.90%
发文量
1061
审稿时长
15 weeks
期刊介绍: Railway Engineering Science is an international, peer-reviewed, and free open-access journal that publishes original research articles and comprehensive reviews related to fundamental engineering science and emerging technologies in rail transit systems, focusing on the cutting-edge research in high-speed railway, heavy-haul railway, urban rail transit, maglev system, hyperloop transportation, etc. The main goal of the journal is to maintain high quality of publications, serving as a medium for railway academia and industry to exchange new ideas and share the latest achievements in scientific research, technical innovation and industrial development in railway science and engineering. The topics include but are not limited to Design theory and construction technology System dynamics and safetyElectrification, signaling and communicationOperation and maintenanceSystem health monitoring and reliability Environmental impact and sustainabilityCutting-edge technologiesThe publication costs for Railway Engineering Science are fully covered by Southwest Jiaotong University so authors do not need to pay any article-processing charges.
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