70m long DYWIDAG Strand Anchors stabilize new Quay Wall in Amazonehaven Rotterdam

Rotterdam harbor in the Netherlands is one of Europe’s most important harbors. After the western port area was enlarged to accommodate the newest generation of container ships, the Amazonehaven area in Rotterdam harbor also had to be widened.

The expansion is being executed at the southern side of the port basin along the entire length of 2.5km. The basin is being widened, and a new wharf is being built parallel to the existing wharf at a distance of 50m.

The new, 2.5km long quay wall consists of a combi wall with tubular piles and sheet piles. Combi walls can absorb higher loads and have higher retaining heights than conventional sheet pile walls. The new combi wall in Amazonehaven has a heavy concrete cap beam and a retaining height of 17 to 19m.

For the construction of the combi wall, tubular piles were driven into the ground first. Afterwards, the sheet piles were installed between the tubular piles. In order to stabilize and secure the combi wall, it was tied back using permanent DYWIDAG Strand Anchors. In total, DSI Netherlands supplied 1,285 permanent 10-13 strand DYWIDAG Strand Anchors for this project.

The presence of existing heavily loaded foundations and a 380kV cable only a few meters behind the quay wall necessitated a vibration free anchor system with long anchor lengths. The permanent DYWIDAG Strand Anchors totaling 841t that were used had individual lengths of up to 70m. Each Strand Anchor was successfully tested with loads up to 225t. Each tubular pile was tied back in the load-bearing soil using two DYWIDAG Strand Anchors.


Havenbedrijf Rotterdam, Netherlands


Gemeentewerken Rotterdam, Netherlands


Joint Venture, consisting of Besix Nederland B.V. and Van Oord Nederland B.V., Netherlands


Anchor Installation De Vries Titan Verankeringen en Funderingstechnieken B.V., Netherlands

Consulting Engineers

Gemeentewerken Rotterdam, Netherlands

DSI Unit

DYWIDAG-Systems International B.V., Netherlands

DSI Scope

Production, supply, technical support

DYWIDAG Products

1,285 permanent DYWIDAG Strand Anchors with 10-13 strands

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