Martin Wynne

Use of rail anchors to prevent rail-creep

Rail anchors are hammered onto the rail foot and bear against the side of the sleepers (ties) to prevent the rail from creeping through the fixings.

Rail-creep is caused by the rolling-wave effect from the wheels. The rail is pushed forward in the direction of travel. Except on steep gradients, where gravity causes the rail to creep downhill.

It is important to prevent rail-creep because it can cause expansion gaps at rail joints to close up. Which can cause the track to buckle in hot weather.

The link shows a photo of rail anchors in use on USA spiked flat-bottom track.

https://img.radioparadise.com/slideshow/720/25051.jpg

When used on bullhead track, the rail anchors bear against the side of the chairs.
  • good info
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