Refurbishing Heathrow road tunnel

A Positioner-Actuator-Manipulator (PAM)machine on hire from UK dealer STM of Tring has been able to cut concrete removal time for Bam Nuttall on its €116.2 million tunnel refurbishment contract at Heathrow Airport. The 18-month contract involves major work on the main and cargo tunnels serving Terminals 1, 2 and 3 in order to comply with the latest European standards and also to extend the life of the tunnels for a further 60 years. As part of the project, some 206m2 of concrete repairs were needed to be
December 11, 2015 Read time: 2 mins
The Canadian built PAM unit was used for the Heathrow Tunnel refurbishment
A Positioner-Actuator-Manipulator (PAM)machine on hire from UK dealer STM of Tring has been able to cut concrete removal time for 3137 Bam Nuttall on its €116.2 million tunnel refurbishment contract at Heathrow Airport. The 18-month contract involves major work on the main and cargo tunnels serving Terminals 1, 2 and 3 in order to comply with the latest European standards and also to extend the life of the tunnels for a further 60 years.

As part of the project, some 206m2 of concrete repairs were needed to be carried out. Bam Nuttall opted to use the Canadian built PAM unit, which allowed work to continue throughout the 10.30 pm to 5.30 am possession time. The breaker is firmly secured to an air-over-hydraulic powered two-piece arm, which isolates vibration from the PAM's controls. The unit is mounted on four castors or removable road wheels and can be pushed into position prior to applying the brake and deploying outrigger legs for stability during operation. Weighing only 525kg without a tool in place, the machine can be easily transported in a conventional van.
Road Structures

For more information on companies in this article

Related Content

  • Surface quality a key trend in asphalt paving
    March 7, 2012
    Improved surface quality and improved machine design are key trends in the asphalt paving sector, Mike Woof reports There is a big difference in asphalt paving techniques in North America and Europe. In North America, the need to construct long stretches of highway quickly resulted in wide pavers offering high throughput capacity, with compaction equipment then being used to achieve the required density of the various courses. In Europe's highway construction projects, distances tend to be shorter and contr
    Read More
  • New earthmoving machines
    July 29, 2019
    An array of advanced earthmoving machines are coming to market, offering increased performance, lower fuel consumption and reduced emissions The global market for earthmoving machines has been particularly strong over the last year. Demand for new equipment has been at a high, with sales of crawler excavators proving especially robust. Manufacturers have responded by increasing output, while tempting customers with new models offering major performance gains. Dozers In the market for dozers, Caterp
    Read More
  • Excavation offering
    July 16, 2012
    There are various ways of building a tunnel, and for excavation jobs many contractors prefer to use versions of standard machines that have instead been converted to suit the confines of tunnelling applications. Some contractors opt to adapt their own units and with ventilation being an issue in underground work, engine emissions are a key focus when adapting machines. Exhaust filters and other after treatment solutions are usually required and there are an array of off-the-shelf packages available as well
    Read More
  • Crash cushion design
    February 13, 2012
    There are key differences in crash cushion design and quality for the United States and European markets. Developments in barrier technologies have followed the varying demands of specific markets, resulting in manufacturers offering different solutions for US and European needs.
    Read More

Highlighted Content