Construction—EMEA—Germany—Hydro & Marine Structures
At the lower offshore terminal, the separating
breakwater consists of an overlap bored pile
wall tied back in 4 layers. The front sides of
the excavation are confined by sheet pile
cofferdams. In these areas, tension anchors
were used at the top of the wall in addition to
the tie back anchors.
The prevailing soil mainly consists of 5 layers,
with back fills, alluvium, gravel and sand in the
upper layers. The drilling work for the bored
pile wall and the anchors were carried out in
conglomerates of highly abrasive consolidated
gravel and in weakly abrasive, partly scaly
claystone and siltstone.
To tie back the retaining structures around
the excavation, DSI produced and supplied
223 permanent DYWIDAG Strand Anchors
with 2, 4, 5, 6 and 7 strands and a total
length of 5,313m as well as 393 temporary
DYWIDAG Strand Anchors with 4, 6, 7, 8, 9
and 10 strands and a total length of 6,230m.
Owner
Wasser und
Schifffahrtsverwaltung des Bundes
(WSV), Germany
Contractor
HOCHTIEF AG, Germany
Subcontractor
GBS Grundbau Bohrtechnik
Spezialtiefbau GmbH & Co. KG,
Germany
DSI Unit
DYWIDAG-Systems International GmbH,
BU Geotechnics, Germany
DSI Scope
Production, supply, technical support
DYWIDAG Products
223 permanent DYWIDAG Strand Anchors
with 2, 4, 5, 6 and 7 strands,
393 temporary DYWIDAG Strand Anchors
with 4, 6, 7, 8, 9 and 10 strands
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