Kombinierte Spundwände am Containerterminal Bremerhaven

摘要

Der Containerterminal »Wilhelm Kaisen« in Bremerhaven entstand in seiner jetzigen Ausdehnung von rd. 5.000 m Kajenlänge in den Jahren 1970 bis 2008. Alle Bauabschnitte waren dadurch geprägt, dass im offenen Wasser der Außenweser unter Tidebedin-gungen, Wellengang und Schwell gebaut werden musste. Zusätzlich ergaben sich Schwierigkeiten aus dem außerordentlich komplexen Baugrund, der bis in 15 m bis 19 m Tiefe aus weichen Kleiablagerungen bestand, darunter aus sehr verschiedenartigen und uneinheitlichen, eiszeitlich geprägten Schichtungen.%The attempt at making a severe combined wall at Container Terminal ?Wilhelm Kai-sen?, Bremerhaven (5,000 m quay), failed during the first phase of construction (CT I) in 1969/1970 since this method was in uncharted waters from a technical point of view. Based on the experience after this ramming of severe combined walls, the technique has since been constantly improved. As early as section CT ?Sud? was close to completion (1979) and construction on section CT II (1980-1983) was going on, only very few cases of declutching (failure of the interlock of sheet piles) occured. As far as sections CT HI (1994-1997), CT Ilia and CT 4 (2004-2008) with combined length of 2,720 m are concerned, all lock compounds proved intact after designing the final harbour bottom. Methods introduced during these pile driving activities are based on decades of experience and have proven of value. The experience from this project was included in the recommendations of the subcommittee ?Ufereinfassungen - Ha'fen und Wasserstrafien? (EAU, ?Waterfront Structures Ports and Waterways?).