Investigation of baseplate pad life on the London Underground Jubilee Line Extension

Posted: 31 January 2017 | Jonathan Bray, Senior TrackEngineer at Amey and Stefan Vonbun, Product Manager & Lukas Mayer, Area Sales, Getzner Werkstoffe Manager | No comments yet

Following the inauguration of the Jubilee line in the later part of the 20th century, its subsequent extension by means of the Jubilee Line Extension in 1999 warranted stringent measures against structural vibration. London Underground enlisted the assistance of Getzner Werkstoffe GmbH for a suitable solution for its baseplate pads. Having been in constant operation for almost 20 years it was time for a health check; Jonathan Bray, Senior Track Engineer at Amey plus Getzner Werkstoffe’s Stefan Vonbun, Product Manager and Lukas Mayer, Area Sales Manager, provide a brief overview of the results in this article.

Investigation of baseplate pad life on the London Underground Jubilee Line Extension

The Jubilee line is the newest line in London Underground’s network, originally opening in 1979, and was named after the silver jubilee of Queen Elizabeth II. It took over part of the existing Bakerloo line with a new section being built to Charing Cross. The line was further extended in the 1990s with the so-called Jubilee Line Extension (JLE). This new section opened in 1999.

The Jubilee Line Extension runs from Green Park to Stratford in east London with 10 intermediate stops. It greatly improved the access to public transport for the neighbourhoods along its route, including the financial centre of Canary Wharf and the entertainment centre of North Greenwich. Today the line is the third busiest on the network with approximately 213 million passengers per year.

The London Underground engineers responsible for the design of the Jubilee Line Extension in the 1990s were aware of the latest requirements for minimising the impact of structure-borne noise and vibration. London Underground found a suitable partner in Getzner Werkstoffe GmbH to support the design of a bespoke engineering solution. As a one-of-a-kind project Getzner not only provided the elastic baseplate pads made of Sylomer®, but designed the whole rail fastening system in conjunction with London Underground.

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