Abstract:
An anchor handling/tug/supply (AHTS ) vessel is employed to engage conductor casings with the seafloor. The conductor casings initially penetrate the seafloor to a first depth under their own weight. The conductor casings may optimally be further engaged with the seafloor to a second depth by the application of suction to the interiors thereof or by the use of a drop hammer. The conductor casings are driven to grade by a hydraulic pile driving hammer deployed from the deck of the AHTS vessel the previously deployed conductor casings to grade before being recovered to the desk of the AHTS vessels.
Abstract:
An anchor handling/tug/supply (AHTS ) vessel is employed to engage conductor casings with the seafloor. The conductor casings initially penetrate the seafloor to a first depth under their own weight. The conductor casings may optimally be further engaged with the seafloor to a second depth by the application of suction to the interiors thereof or by the use of a drop hammer. The conductor casings are driven to grade by a hydraulic pile driving hammer deployed from the deck of the AHTS vessel the previously deployed conductor casings to grade before being recovered to the desk of the AHTS vessels.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Stabilisierung langer schlanker Pfähle beim Eintreiben in den Meeresboden unter Wasser mittels Rammhämmern oder anderen Arbeitsgeräten, wobei an mindestens einer Stelle zwischen Meeresboden und Pfahlkopf eine Zwischenführung durch ein von einem flexiblen Zugelement unter Vorspannung gehaltenen Führungselementes erfolgt.