José Pycke already works twenty years for Jan De Nul and is responsible for the workshop in Aalst. The workshop has 70 employees, spread over several departments, almost half are welders but we also have plenty of machine operators, electricians…Read more
The subsoil determines the construction method of a quay wall. In Ghana, it is rocky, which makes it difficult to work with drilled piles. Here, prefabricated concrete blocks offer the best solution. The rock below water acted as foundation after the project team had installed an 80-cm layer of stones on top of it.
Pascal Dumez: “For levelling the submarine foundation layer for the quay wall, we used the frame of a traditional building crane and replaced the control cabin by a container. From there, the team could control the levelling vehicle below the frame for smoothening the stone layer. The four feet with which the frame rests on the seabed can be adjusted so as to level the frame and get the stone layer completely level, with a deviation of only one to two centimetres. At that point, we could start with the construction of the first 200 metres of quay wall.”
A project such as in Takoradi is very capital-intensive. Governments may well have the vision to expand their ports, often their budgets are inadequate. Mathias Van De Vijver, Financial Manager, explains how Jan De Nul can still realise these projects…Read more
The total quay wall height is up to 20.7 metres, with at low tide 3.2 metre above and 17.5 metre below water. It is built of 4,000 concrete blocks each of 50 tonnes, all made on site. When stacking the concrete blocks, these are aligned alternately.…Read more
The project in Takoradi started in 2012; today, it is almost 90% complete. Filip Morobé, Area Director Africa: “What makes this project special, is that there has been no call for tenders. The Ghana Ports and Harbour Authority (GPHA) has…Read more
Apart from wood, Takoradi mainly exports cocoa, bauxite and magnesium. The port is also the central pivot for all supplies to Jubilee Field, a huge offshore oil field west of Takoradi. Another part of the cargo entering the port is intended for countries…Read more