Case Study
Elastic bearing of theAnkara – Sivas high-speed line

 	Lower maintenance costs
thanks to reduced wear

 	Increased safety and availability byprotection of the superstructure 	Higher acceptance due toefficient vibration protection

Increased route availability
for the ‘Middle Corridor’

The project

The Getzner solution

Turning a twelve-hour journey into two

Low wear in heavily loaded areasTThe ‘Middle Corridor’ along the New
Silk Road connects Türkiye withGeorgia and Azerbaijan. Between thecapital Ankara and the city of Sivas inthe Central Anatolia region, the Turkish railway company TCDD has built anew, double-track high-speed line forpassenger and freight services as partof this corridor. It is scheduled to open
in 2023.
The new construction will not only reduce the journey time from Ankara
to Sivas from twelve hours to around
two, but the route length will also be
shortened by around 200 kilometresto 406 kilometres. Trains will travel along the line at speeds of up to250 km/h.
Various Getzner solutions were installed in two construction phasesfrom 2018 to 2022 in order to reduce
maintenance costs in the long term
and increase track availability.

The quick and easy to installunder ballast mats and sidemats sustainably reduce theneed for maintenance on thenew high-speed line.

he Ankara - Sivas line passes overnumerous bridges and viaducts,
and more than 10 per cent of it leads
through tunnels. In addition to themany high-speed turnouts, the transitions from open track into a tunnel
or onto a bridge represent a particular challenge in terms of the level ofrequired maintenance. The different
stiffnesses of the substructure andthe uneven settlement behaviour leadto high dynamic loads at these points.
This generates increased ballast wear,
which can result in cavities between
the sleeper and ballast, and even tocracks or fractures in the sleepers.

Lower maintenance costs andincreased safety
In order to reduce wear on these heavily used sections, the customer opted

for durable polyurethane solutions
from the market leader – not least because of the fast delivery time that
Getzner was able to ensure for thelarge quantities of products required.
Furthermore, the Getzner solutions
are also tested according to current
European DIN and EN standards.
Around 350,000 m2 of under ballast mats and about 150,000 undersleeper pads were used to protect thesuperstructure. “Our products protect the ballast, helping to minimise
wear in superstructure components.
This will reduce the need for maintenance, in particular at turnouts andtransitions, and therefore significantly increase line availability,” explains
Ismail Bayrak, Project Manager for
Getzner. Mass-spring systems provide optimum vibration protection on
20,000 m2 of slab track. The fulfilment

Under sleeper pads protect the ballast, improvethe track stability and extend the service life of
the superstructure.

Thanks to the full-surface mass-spring systems,
vibrations on the high-speed line are noticeablyand audibly reduced.

Feedbackof the specifications required by thecustomer was confirmed for all materials by the technical universities ofMunich and Innsbruck.
Comprehensive support“For decades, it has been really important to us that our partners get thebest possible support when installing
our solutions. That’s why, in addition
to tools such as mat welding equipment, we also offer other services likeonline training. And, if needed, we canalso visit the site in person to provide
assistance,” explains Ismail Bayrak.
The experts from Getzner Werkstoffe
supported the project from the initial detailed planning and model andforecast calculations using the finite
element method through to the preparation of installation plans, on-site supervision and acceptance.

All aboard for sustainability
Particular attention has been paid toenvironmental compatibility: Almost
all Getzner materials were transported
using intermodal transport by railfrom Austria to Türkiye. “We arealways looking for ways to reduceour carbon footprint. In addition
to organising alternative transportroutes, this also includes oursophisticated recycling concepts andself-generated electricity,” explains
Ismail Bayrak, adding: “The durabilityof our products and the extended lifeof the superstructure are two otherimportant aspects that contribute tosustainability.”

What does the customer have to say
about the project?
“An innovative approach
was taken to this highspeed project. On various sections of the track– including the transition areas – we used under ballast mats, massspring systems and under sleeper pads.
The elasticity of the Getzner productsbrought the stiffness of the tracks tothe desired level. Our goal is to significantly reduce maintenance costs.
Throughout the entire construction
phase, Getzner worked closely with theproject team to overcome the challenges posed by things like the harshweather conditions along the line. In
doing so, Getzner used the expertise of
its experienced employees.“Onur Agin

Railway Systems Engineer,
Railway Construction Department, TCDD

Facts and figures

Project support:
Implemented:
Customer:
Operating company:

Ankara – Sivas railway line, Türkiye
406 kmGetzner Werkstoffe GmbHApprox. 150,000 track and turnout sleeper pads,approx. 350,000 m2 of under ballast mats,approx. 20,000 m2 of mass-spring systems
Detailed planning, model and forecast calculations using FEM,
on-site supervision, quality assurance, acceptance
2018–2022
1st construction phase Yapı Merkezi İnşaat ve Sanayi A.Ş.
2nd construction phase Doğuş İnşaat ve Ticaret A.Ş.
TCDD, Türkiye Cumhuriyeti Devlet Demiryolları

Getzner Werkstoffe GmbH

High-speed line references (extract)

Founded:— Çerkezköy – Kapıkule, Turkey— Yerköy – Sivas, Turkey— Kayaş – Yerköy, Turkey— LGV Est, France— HONAM HSR, South Korea— Bologna – Firenze, Italy— Rome – Naples (Roma – Napoli), Italy— Vilagarcía del Padrón, Spain— JR West and JR East, Japan— Hannover – Würzburg, Germany

1969 (as a subsidiary ofGetzner, Mutter & Cie.)
Chief Executive Officer: Juergen Rainalter
Business areas:
Railway, construction, industry
Headquarters:
Buers (AT)
Locations:
Beijing (CN), Munich (DE), Berlin (DE),
Stuttgart (DE), Lyon (FR), Paris (FR),Pune (IN), Tokyo (JP), Charlotte (US),Melbourne (AU)AUSTRIA — Bürs GERMANY — Berlin — Munich — Stuttgart FRANCE — Paris — Lyon JAPAN — Tokyo
INDIA — Pune CHINA — Beijing USA — Charlotte AUSTRALIA — Melbourne
www.getzner.com

CS SI en © Copyright by Getzner Werkstoffe GmbH | 05-2023

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Length:Vibration isolation:
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