Four loading points removed from the Marshall dock
In the Petroleum dock in the Antwerp port area, DDM has removed four loading points.
The client needed the space for constructing new, safe quayside steps for skippers to moor. DDM came up with
the plan of removing the loading points on the water side: from the Marshall
dock, using a pontoon, equipped with a 200-ton crawler crane.
As far as
permits are concerned, the Marshall dock is the most difficult dock for gaining
access. It is in the heart of the petrochemical industry and is surrounded by
refineries and chemical plants. Any entry must be requested weeks
beforehand and is subject to the most stringent permits/measures, which are
imposed by the three exploiters and the port authority (Port of Antwerp)
together with the pilotage service.
The quays are
under water, up to fifteen metres from the side, and fitted with asphalt mats.
These are to protect the dock's draught and the screws of the ships. This meant
that the spud poles for the pontoon had to be placed at least sixteen metres
from the side. These spud poles are essential for keeping the pontoon stable
Due to the Ex
environment, we had to carry out all activities cold. We had calculated on a week of cold sawing for preparation per
loading point. It was the intention to prepare the loading points like this so
that we would be able to hoist all four away within one week.
When the hoisting week came around, everything was in such good order that we only needed one day per loading point for dismantling and disposing all material with the pontoon. This was an incredible result, which we could only have achieved thanks to the proper preparations and the commitment of all those concerned.