Design criteria for slab track structures (CHARMEC TS19)
Research Project , 2016 – 2021

According to technical specifications issued by Trafikverket, the construction of future high-speed lines in Sweden will be based on slab track design. Project TS19 aims at providing a scientific foundation for the specification of slab tracks under Swedish conditions. Vertical dynamic interaction between high-speed trains and the track will be studied using a generic model that includes a three-dimensional description of the slab track structure on a Winkler-type foundation. The influence of stiffness gradients and differential settlements in the supporting foundation along and across the slab will be investigated. Transition zones between different track forms will be studied. Strength and fatigue life of the design will be analysed considering high-frequency impact loads due to wheel/rail irregularities and also temperature variations and crack propagation. Different slab track designs available on the market will be compared with conventional ballasted track designs to obtain an optimum performance under Swedish climate conditions at a low life cycle cost. The project runs in parallel with work in the EU program Shift2Rail.

This is a doctoral project. Mr Emil Aggestam, Lic Eng, is the doctoral student and Professor Jens Nielsen is the project leader and supervisor. Professor Anders Ekberg of Chalmers and Dr Rikard Bolmvik of Abetong AB in Växjö are assistant supervisors.

 

Participants

Jens Nielsen (contact)

Forskningsprofessor at Chalmers, Mechanics and Maritime Sciences, Dynamics

Emil Aggestam

Doctoral Student at Chalmers, Mechanics and Maritime Sciences, Dynamics

Anders Ekberg

Full Professor at Chalmers, Mechanics and Maritime Sciences, Dynamics

Collaborations

Abetong AB

Växjö, Sweden

Atkins Sverige AB

Stockholm, Sverige

Bombardier Transportation GmbH

Siegen, Germany

Faiveley Transport Nordic AB

Landskrona, Sweden

Green Cargo AB

Solna, Sweden

Lucchini Sweden AB

Surahammar, Sweden

SJ AB

Stockholm, Sweden

Swedish Transport Administration

Borlänge, Sweden

SweMaint AB

Göteborg, Sweden

voestalpine Schienen GmbH

Leoben, Austria

voestalpine VAE GmbH

Zeltweg, Austria

Funding

Chalmers Railway Mechanics (CHARMEC)

Funding Chalmers participation during 2019–2021

Swedish Transport Administration

Funding Chalmers participation during 2016–2018

Related Areas of Advance and Infrastructure

Sustainable development

Driving Forces

Transport

Areas of Advance

C3SE (Chalmers Centre for Computational Science and Engineering)

Infrastructure

More information

Project Web Page

www.chalmers.se/charmec

Latest update

2020-03-03