How to overcome geotechnical challenges in implementing high speed rail systems in Australia

Publication Type:
Journal Article
Geotechnical Engineering, 2014, 45 (1), pp. 39 - 47
Issue Date:
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Although there are a few medium speed rail systems in Australia, there is not a passenger rail transport with the high transit speed, seen in other countries. This paper firstly summarises lessons learnt from other countries, experienced high speed rail (HRS) for many years. Then, the challenges associated with implementing HSR systems in Australia are explained. The main challenges include selection and design of proper tracks, geographical issues, environmental concerns, economics and project costs and construction procedures. The second part of the paper presents the effective solutions to the geotechnical challenges associated with HSR systems. Various approaches are presented to improve the ballast layer properties and enhance the track formation bearing strength, stiffness, resiliency and dynamic properties. Employing concrete slab (ballast-less) tracks is also taken into consideration for HSR systems, and their performance is compared to ballasted tracks. Copyright © 2014 Southeast Asian Geotechnical Society (SEAGS). All Rights Reserved.
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