Hochtief Murphy (TBM Grout Plant)



Hochtief Murphy Joint Venture
Crossrail Project – Contract C310
London, England

20 m3/hr



  • Conceptual Design
  • Mechanical Engineering
  • Fabrication of all Equipment
  • Commissioning
  • On-Site Training and Site Support


  • Tornado 1200 Colloidal Mixer
  • 20’ Heated Container
  • 3000 litre Agitation Tank
  • Two Cement Screw Conveyors
  • One Bentonite Screw Conveyor
  • Automated PLC/MCC Control System
  • Pneumatic System
  • Admix System
  • Water Transfer Pump

The Crossrail Project, in London, is currently the biggest engineering project in Europe. It will connect 37 stations, including Heathrow airport and Maidenhead in the west with Canary Wharf, Abbey Wood and Shenfield in the east. A total of 21 km of new twin-bore tunnels under central London will be required. The TBM’s will weave their way between existing underground lines, sewers, utilities and building foundations at depths of up to 40 m to create the tunnels required to deliver the new railway.

Hochtief Murphy JV was awarded the C310 contract which entails boring under the Thames River with two slurry TBM’s. The tunnel boring machines will start at Plumstead and will progress approximately 2.5 km westward to their end destination at North Woolwich.

Team Mixing Technologies Inc. was awarded the contract to supply a single bi-component (A/B type) grout plant to feed the two Herrenknecht TBM’s.