Construction—EMEA—Germany—Hydro & Marine Structures
The Burchardkai in Hamburg:
GEWI ® Plus Anchors ensure an efficient Rehabilitation of Berth No. 7
The Burchardkai container terminal is Hamburg’s largest and oldest container handling facility. Today, one in three containers
passing through Hamburg Harbor is handled at this terminal, which was built in 1968. Since an increasing number of ships unload
their cargo in Hamburg harbor from year to year, the Burchardkai has been expanded and modernized several times during its
recent history.
One of the measures for modernizing the
pier was a pilot project at berth No. 7.
The project’s goal was to facilitate future
tiebacks for rehabilitating damaged parts
at the sheet pile walls in the quay walls.
16 permanent, 28m long GEWI ® Plus Anchors
with double corrosion protection were used
to tie back the sheet pile walls. Due to their
high load bearing capacity and rigidity,
the permanent GEWI ® Plus Anchors are
particularly well suited for this purpose.
In advance, DSI supplied 4 test piles that
were used to determine the final pile and
bond lengths. The drilling work for installing
the GEWI ® Plus Anchors was carried out
from a floating pontoon. Since the starting
point of drilling was located approximately
2m below medium high tide, work was only
possible in limited time slots during low tide.
94
Consequently, the complete work process
had to be synchronized with the water levels
dependent on the tide.
The countersinking of the tendons had to
be carried out using the back-step method.
The piles that were left out could only be
installed after tensioning and positioning the
neighboring piles.
The extremely limited space within a previously
welded steel box neither allowed the usual
tensioning procedure nor the connection of
the tendons with the structure. Therefore,
a special and specifically produced socket
wrench fitting the anchor nut was used to
connect the bars to the structure.
Owner
Hamburg Port Authority AöR
(HPA), Germany
General Contractor
AUG. PRIEN Bauunternehmung
(GmbH & Co. KG), Germany
Subcontractor
Neidhardt Grundbau GmbH,
Germany
DSI Unit
DYWIDAG-Systems International
GmbH, BU Geotechnics, Germany
DSI Scope
Production, supply
DYWIDAG Products
16 permanent, 28m long GEWI ® Plus
Anchors