Jan de Nul Group
Jan De Nul was established in 1938 as a Civil Engineering and Maritime Construction Company. In 1951, expansion towards dredging started and has evolved into an important activity in which Jan De Nul has become specialized and ranks at the top.
Jan De Nul employs 2500 employees worldwide and has become a world leader in dredging, reclamation works and specialised services for offshore pipelines, rock dumping, salvage and heavy lifting, civil engineering works, marine related civil works, buildings and water purification plants and is specialized in turnkey projects. The Jan De Nul Group also offers large-scale environmental services which include soil remediation, confined waste disposal, sludge treatment and organic waste recycling by means of its subsidiary company ‘ENVISAN’.
World's largest dredging vessels in the world's most modern dredging fleet
The Jan De Nul Group’s massive expansion policy with respect to its new dredging fleet capacity is unequalled in the dredging sector providing the most modern dredging fleet in the world. The company owns and operates :
8 cutter suction dredgers with total installed diesel power ranging from 2,380 to 27,240 kW including the world’s most powerful self-propelled cutter dredgers such as the "JFJ De Nul", the "Leonardo da Vinci" and the "Marco Polo". In July 2003, the world’s largest self-propelled rock cutter suction dredger, the "JFJ De Nul" was launched and commissioned by the end of the year. The ship has a total installed power of 27,240 kW and 36 % more power on the cutter drive than the "Leonardo da Vinci". Two medium sized stationary cutter suction dredgers have been ordered at the Tianjin Xinhe Shipyard in China and are due for delivery in 2006.
17 trailing suction hopper dredgers with hopper capacities ranging from 2,339 to 33,000 m³ including the "Vasco da Gama", the world’s first mega dredger and four new trailing suction hopper dredgers launched this year : the "Francesco di Giorgio" and the "Taccola" with 4.400 m³ capacity and the 11.300 m³ "Francis Beaufort" and "Filippo Brunelleschi".
With her 60,000 dead weight tonnage, the 33,000 m³ 'Vasco da Gama' provides a carrying capacity of some 80 percent in excess of the largest hopper dredgers available on the market at this time.
A deep dredging facility up to a suction depth of 130 m has been installed to set a new record in deep dredging.
9 (of which 4 under construction) sea going self-propelled split hopper barges with hopper capacity ranging from 1,800 m³ to 3,700 m³.
1 side stone dumping vessel.
1 backhoe dredger with a bucket capacity ranging from 4.5 m³ to 11 m³.
2 floating cranes with lifting capacity of respectively 440 tonnes and 3,300 tonnes.
Various auxiliary equipment and support vessels including multi-purpose handling tugs, crane and survey vessels and one oil-spillage recovery vessel.
Its diverse and well-balanced fleet of dredgers provides the flexibility to execute dredging and reclamation related works of any kind, size or nature, including :
- Capital dredging and maintenance works in ports, harbours, rivers, etc…
- Reclamation of port and industrial areas.
- Rock dredging in open sea conditions.
- Dredging of shore approaches and trenches for offshore pipelines and outfalls.
- Sand wave dredging in open sea (pre-sweeping).
- Pipeline stabilisation and protection by rock dumping.
- Coastal defence by means of beach replenishment.
- Oil recovery and cleaning operations.
- Dredging, treatment and disposal of contaminated soils.
- Specialised alternative dredging methods to reduce or avoid environmental impact on marine related works.
- Various auxiliary equipment and support vessels including multi-purpose handling tugs, crane and survey vessels and one oil-spillage recovery vessel.
Major projects include :
The so-called “dredging contract of the century” for the reclamation of the new airport platform for Hong Kong’s new international airport at Chek Lap Kok involved Jan De Nul as joint leader of an international consortium of dredging and civil engineering contractors. This massive undertaking, which was completed on time and within budget, included a total of 237 million m³ of dredging and land reclamation works. The project was the single largest land reclamation project at the time and employed the majority of the world’s largest dredging vessels.
The ongoing 18 year’s concession contract for the deepening and the maintenance dredging of the “Río Paraná and Río de la Plata” River in Argentina was designed to increase the navigability of the river so as to provide improved communications and trade opportunities for Argentina’s inland river conurbations. This project extends over approximately 790 kilometres from the entrance of the Port of Santa Fe on the Paraná River till Punta Indio, 240 km on the Río de la Plata.
The NorFra pipeline installation project from Draupner (Norway) to Dunkirk (France). Late in 1996 all four dredging packages tendered to Statoil were awarded to Jan De Nul. The works involved pre-sweeping over a distance of approximately 300 kilometres, pre-trenching in stiff clay at the Westhinder shipping channel and dredging and backfilling together with civil engineering works related to the landfall at Dunkirk.
The ongoing 1,400 ha land reclamation project for housing and residential purposes at Pulau Ubin and Pulau Tekong in Singapore. Involving the filling of approx. 200 million m³ of sand, capital dredging of waterways, the construction of an offshore dumping ground for disposal of 24 million m³ of soft clays, the construction of a staging area on the mainland and bund construction works over a length of 15 km. The 5 years’ project is scheduled to be completed by November 2005.
Palm Island II, project in which a 4 km long peninsula in the form of a palm tree is to be created, protected by a 200m wide and 11 km long breakwater.
Shore approach trenching, backfilling and civilworks on the island of Sakhalin (Russia) in remote seastate and climatic conditions.
The quality of Jan De Nul's service within the industry and to its clients is underwritten by its ISO 9001: 2000 Certification, which has been held since 1995.
www.jandenul.com
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