With globalization and the ever increasing levels of world trade, container ships have increased in length, draught and capacity. The current generation of large container vessels are now some 400 metres long, 59 metres wide, with a draught of 16 metres.
The London Gateway Port provides 2,700 metres of quay, seven deep-water berths with depth alongside of 17 metres, 24 giant quay cranes and an annual capacity of 3.5 million TEU (Twenty foot Equivalent Units). The £1.5 billion facility, on the north bank of the Thames estuary, is only 20 miles (32km) from London at Stanford le Hope, Essex also includes what is claimed to be Europe’s largest Logistics Park, a Rail Terminal, process area and improved road links to the A13.
Much of the London Gateway Port’s container transfer and handling area is concreted so effective surface water drainage was a major consideration to ensure efficient all-weather operation.
Hauraton supplied a total of 140 metres of RECYFIX® HICAP® 100 and 300 high capacity channels to drain surface water from Berth 7, developed by Pentalver for DP Ports, the HICAP® drainage system is able to accept a total water volume of 21,994 litres.
As the main HICAP® channel components are made from 100% recycled composite Polypropylene (PP) they are not susceptible to corrosion. By affording a superior overall hydraulic performance, the HICAP® system generally allows engineers and contractors’ flexibility in surface design and installation, reducing the number of channel runs normally required to drain a given area. This reduction means less underground excavations, materials and vastly reduced installation time. As there are fewer runs required, the surfaces strength is not compromised whilst future maintenance and cleaning is also reduced.
The Hauraton channels at Berth 7 were installed in one run so keeping the excavation work a minimum. Ken Burgess, Hauraton‘s Project Engineer commented, “At just over 23kg, even the RECYFIX® HICAP® 300 one metre unit was easily manipulated into position on site and no channel breakages were reported during the installation process”.
To further reduce installation times, end-of-run caps and pipe connection sockets were also supplied with other connection points moulded into the sides and bottom of each channel. This was a major advantage for the contractor as it helped speed the completion of the project.
Factory fitted with slotted ductile iron inlets, the channels comply with loading category Class F900 so can easily take the weight of a lifting truck transporter with a fully laden container. Importantly, once installed the complete system is highly resilient to the twisting forces imposed by the wheeled vehicles employed.
In addition to the HICAP® channel run a further 30 metres of FASERFIX® KS 100 and 150 were installed in access roads. These channels were fitted with 9mm slot ductile iron gratings and provided a loading category of Class E600. The FASERFIX® KS channel component is made from Fibre Reinforced Concrete (FRC) with galvanised steel pressings permanently moulded along their top edges, so with the gratings fitted, the unit’s exposed surfaces are highly resistant to wear.
Tim Connolly, Hauraton’s Sales and Marketing Director for comments about the project, “We are pleased that this part of the London Gateway project has been such a success and delighted that the channel runs were installed with no problems reported. I am sure this contributed to the rapid build progress of the job”.
For Case Studies go to www.drainage-projects.co.uk