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More Elasticity for the Heavy Haul Malmbanan Line

A Convincing Argument: Under Sleeper Pads under Extreme Conditions between Gällivare and Koskullskulle

home• Case studies• More Elasticity for the Heavy Haul Malmbanan Line

Particularly in heavy haul, ballasted track often reaches its limits. High axle loads and freight tonnage directly place a disproportionately high strain on the track. For this reason the Swedish operator Trafikverket opted to install under sleeper pads in 2014.

The challenge
  1. Axle load of 30 t
  2. High frequency, high tonnage
  3. Heavy haul trains with up to 68 wagons
  4. Weighing roughly 8,500 metric tons
  5. Above-average amounts of wear on high-grade rail steels and sleepers

The Getzner solution

Trafikverket knew that under sleeper pads help significantly to protect the ballast. But no-one had ever tested whether this solution would work as efficiently and on this scale north of the arctic circle before. The ideal load distribution within the track was required. This was the goal behind the attempt to reduce the stress between ballast and sleeper by enlarging the area of contact between the sleeper and the ballast. Under sleeper pads, such as those offered by Getzner, are perfect for such a scenario.

Advantages for the customer
  • Effective protection of the ballasted track
  • Thus, increased availability and profitability
  • Less maintenance work required
  • Significantly lower life cycle costs
  • Improved track bed quality
  • Reduction of short-pitch/rail corrugation on rails in tight curves
  • Reduction of vibration emissions
  • Prevention of voids under the sleepers
” At Getzner, the message came through loud and clear: we needed to combine both resilient and plastic properties in our under sleeper pads.
Schweden Malmbanan besohlte Betonschwellen
Schweden Malmbanan Gleis
Schweden Malmbanan Header
Schweden Malmbanan Schwerlast
Schweden Malmbanan Station
Schweden Malmbanan Zug
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Products used

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Downloads

Case Study Heavy Haul Line Malmbanan EN 572.4 KB
Case Study Heavy Haul Line Malmbanan EN

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Brochure Heavy Freight Solutions for Heavily Loaded Rail Tracks EN 1.67 MB
Brochure Heavy Freight Solutions for Heavily Loaded Rail Tracks EN

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Case Study Daqin Coal Line, China EN 430.08 KB
Case Study Daqin Coal Line, China EN

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Case Study Fengsha Heavy Haul Line, China EN 581.01 KB
Case Study Fengsha Heavy Haul Line, China EN

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Case Study Long-term Test of Rail Pads on a Heavy Traffic Route, Brazil EN 468.36 KB
Case Study Long-term Test of Rail Pads on a Heavy Traffic Route, Brazil EN

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