James Walker - James Walker Australia

By: James Walker  11-11-2011
Keywords: Ballast Mats

Ballast Mats

Over 3500 Trackelast® Ballast Mats from James Walker Group member Tiflex have been installed on sections of a new heavy freight line in Western Australia.

The 13.5km single-track railway will carry iron ore and other minerals to Geraldton Port - the region's export distribution centre.

The railway is being redirected along the road/rail route of the new Geraldton Southern Transport Corridor. This removes track from the foreshore to allow the amenity of the marine and central business district to be redefined and developed.

Vibration attenuation

James Walker Australia has also provided Tiflex Trackelast FC250 ballast mat material to the new Perth - Mandurah project.

Following on from the success that James Walker Australia has had, supplying high quality Tiflex Trackelast ballast mat materials into the Australian rail infastructure market, we have decided to hold stock of the material at our Sydney manufacturing facility at Regents Park.

"Demand for the product has been such that we need to carry stock to cater for the sometimes, short lead times demanded by the contractors". Says Paul Williams, Sales Director. "We will also offer in factory welding of the mats to allow faster laying at site".

The Trackelast ballast mat grade to stocked will be the popular FC250 30mm thick complete with Geofelt protection layer. Trackelast FC250 has a static stiffness of 0.02MN/m3, and will be available in 1100mm x 1100mm tiles or prewelded to customer specified widths.

Ballast Attrition

James Walker Australia, has recently provided a large order of Tiflex Trackelast ballast mats, to Laing O`Rourke. The project is located in Western Australia and the Trackelast has been installed on bridge decks to reduce ballast attrition. The product provided was Tiflex Trackelast FC750, with a Geofelt protection layer.

"For more than 3km, the new rail route runs through residential suburbs and, in some areas, only 30m from houses. It is therefore essential to minimise track-bed noise and vibration", explained Peter Mayhook, MD, James Walker Australia.

"Thiess Pty Ltd, the design and construct engineer, ordered the Trackelast system on the basis of value for money and because it beat other products on vibration damping criteria at 30m distance from the track."

UK-based Tiflex supplied the Trackelast FC907C mats with a Geofelt protection layer.

When installed under ballast, the rubber-based resilient mats will isolate the track structure from the supporting foundation to attenuate vibration transmission by up to 20dB.

They are designed to give reliable performance for a very long service life under all climatic conditions.

The $88M corridor project is managed jointly by Main Roads Western Australia and the Public Transport Authority.

The information in this article was current at 08 Nov 2011

Keywords: Ballast Mats