This project for the Cross Rail in London is where the CPT was first used on the C300 contract. This invert design with its numerous cast-ins and reinforced sections prevented direct access for the agitators. Laborious pumping methods were previously used.
The CPT was designed and built to overcome these challenges. The first version had 9 platforms with rear-fed concrete supply pumped to the work front. Winches propelled the CPT and provided a productive, safe and accurate method of invert casting. Given its configuration, placement ran 24/7 as prep work occurred in parallel.
Notably, the machine completed a 13 day continuous pour from Bond Street to Paddington. This method was awarded an European patent.

Project Information

Location London, UK
Date 2014
Client BAM Ferrovial
Industry Sector Rail
Project Type Consulting
Construction Type Tunnel