Glass Fibre Reinforced Plastic

Tunnelling works such as those involved in the London Underground extension can pose a number of logistical concerns and safety risks.

See the examples below for how one site addressed this:

  • Used Glass Fibre Reinforced Plastic (GFRP) in concrete invert reinforcement bases at the step plate junction.
  • GFRP reinforcement is 75% lighter than traditional steel reinforcement. The weight reduction reduced risks associated with manual handling and lifting.
  • The lighter weight also made it possible to preassemble the reinforcement on the surface and place it in two halves.
  • The benefits of GFRP compared to steel include reduced carbon footprint and high corrosion resistance.
  • In addition, a specially designed and built segment erector was used as alternative to traditional scaffold and winch techniques.

This new use of technology alleviated safety dangers involved with manual handling and made the tunnelling process more efficient.

To find out more, click the link below.

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Footer Reference

Monitor report. Ferrovial Agroman Laing O'Rourke (FLO). London. June 2017.

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