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Heavy plate for the urban tunnel in Madrid

Steel for a torque of 125,268 nKm

For the 3,650 m long northern tunnel of the inner-city motorway M-30 in Madrid the Spanish construction companies ordered one of the biggest tunnel boring machines in the world. With a maximum excavation diameter of 15.20 m the cutting head outperformed all dimensions in mechanical tunnel heading before. The tunnel boring machine has an installed torque of 125,268 kNm. To ensure the effectivity of the machine with the biggest excavation diameter at that time in high friction ground conditions a novel cutting head concept was developed.

This concept consists of an inner and an outer cutting head with a drill diameter of 7 m and 15.2 m respectively. They are located on one level and can be activated and moved separately. The steel that was used to build the tunnel boring machine is normalized construction steel S355. Some of the built in elements of the machine that are exposed to high stresses have a thickness of up to 200 mm.

Facts

Country Spain
Quality S355J2G3
Building owner Herrenknecht
Diameter 15.2 m
Delivered quantity 7,500 t
Plate Thickness: up to 200 mm
Project: Mega-Tunnel below Madrid
© Herrenknecht AG © Herrenknecht AG

Contact

 Stefan Ackermann
Stefan Ackermann

Sales Heavy Machinery, Stockists & Steel Service Centers

Tel.: +49 6831 472195
Fax: +49 6831 474580
E-Mail

Dillinger

Contact

Dr. Wolfram Hölbling
Dr. Wolfram Hölbling

Marketing & Technical Support

Tel.: +49 6831 474708
Fax: +49 6831 473089
E-Mail

Dillinger

Innovative top-quality steel products, total orientation around our customers' needs and unceasing technological development in close cooperation with our partners form the basis of our success - as they have for more than 333 years.

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Contact

AG der Dillinger Hüttenwerke
Werkstraße 1
66763 Dillingen/Saar

Tel.: +49 6831 47 0
Fax: +49 6831 47 2212
E-Mail: info@dillinger.biz

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Heavy-plate products
  • Non-alloy structural steels
  • Normalised fine-grained structural steels
  • Thermomechanically rolled fine-grained steels
  • High-strength quenched & tempered fine-grained steels
  • High-temperature steels
  • Cryogenic steels
  • Weathering-resistant steels
  • Case-hardening & quenching & tempering steels
  • Security steels
  • Tool & mould steels
  • Wear-resistant steels
  • Sour-gas-resistant steels
  • Offshore steels
  • Linepipe steels
Applications
  • Steel Construction
  • Hydropower Engineering
  • Pressure Vessels & Boilers
  • Earthmoving Machinery & Mining
  • Mechanical Engineering
  • Offshore Oil & Gas
  • Large Diameter Pipes
  • Shipbuilding, inc. Refrigerated Transport
  • Plastics and Concrete Moulds
  • Wind & Tidal Power
  • Protection
Proprietary steels
  • DILLIDUR
  • DILLIMAX
  • DI-MC
  • DIWETEN
  • DICREST
  • DIWA
  • DILLINAL
  • DIROS
  • DIMO
  • DIFENDER
  • DICUT
  • DI-RACK
  • DIGEAR
  • DI-TANK
  • DIWIND
  • Other steels
Plates on stock and steel services
  • Heavy plate services ex stock
  • Heavy plate services ex mill
By-products & Chemical laboratrory
  • By-products
  • Chemical laboratrory services