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BKB Helmstedt

BKB Helmstedt – Rerouting of bypass road L 640

The Challenge

In course of rerouting of the bypass road L 640 near to Schöningen two parallel HAMCO circular arch profiles went into action. One of them serves as underpass profile for railway traffic, the other for vehicle traffic of a service road. The assembly of the circular arch profile for the rails was executed without disturbing the railway traffic.

The assembly was made easier thanks to the use of track-mounted, mobile scaffolding. The total assembly of both structures with a total weight of 80 tons took two weeks. The following backfilling was im-plemented with recycling material.

  • Profile 2 x SKB 77
  • Corrugation 200mm x 55mm
  • Span 2 x 10,12 m
  • Rise 2 x 5,06 m
  • Length 2 x 32,00 m
  • Plate thickness 7,00 mm
  • Corrosion protection Hot-dip galvanizing plus coating
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