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 | | FAST-TRACK DRAINAGE | | | ACO Building Drainage | | 07/02/2008 | | | ACO Drainage systems at new High Speed 1 station.
A number of high performance external drainage systems from ACO Technologies have been installed at the new international station at Ebbsfleet for High Speed 1. Beginning passenger services to mainland Europe when the line opens in November this year, the extensive network of kerb and channel drains at the station combine to effectively remove all standing water from the rail platforms, the passenger car parks and around the main terminal building.
Ebbsfleet International forms a vital component in the £5.8 billion high speed rail project that links London to the rest of Europe. The station, which sits strategically close to the M25 and M2 in Kent, provides ‘park and ride’ access to the new rail services outside the capital and is expected to handle in excess of one million passengers a year.
The site was developed by London & Continental Stations and Properties (LCSP), the property subsidiary of London & Continental Railways: “With such high volumes of vehicle and pedestrian traffic, we cannot compromise on durability or drainage performance - it is essential that the systems remove surface water as quickly as possible and provide sufficient storage capacity to cope with sudden downpours,” says Paul Shattock, Head Project Manager at LCSP.
The four car parks on the site have a total of 5,000 spaces with potential for up to 9,000. Drainage to these areas, and to the perimeter of the main terminal, is provided by a combination of ACO S Range® channel, ACO RoadDrain® channel and the Queens Award winning ACO KerbDrain® combined kerb/channel system. All three systems specified for the site have an internal bore of 100mm.
ACO KerbDrain has been used extensively on the perimeter and around the islands within the car parks. These are linked together via short runs of ACO RoadDrain, which acts as a junction channel in this application. Where individual runs of channel have been required ACO S Range has been installed. Both ACO RoadDrain and S Range are heavy duty systems having certified Load Class ratings of F900, making them suitable for the most demanding load bearing situations.
Across the site there are numerous pedestrian paths and walkways. Level crossings have been incorporated within the KerbDrain runs with the installation of special drop assemblies and perforated flush centre stones. These allow unbroken channel runs to be created with no loss of inlets and no loss of hydraulic capacity.
Within the terminal there are four main passenger platforms that are partly exposed. On each, a single run of ACO N100KS channel has been installed. Cast with protective stainless steel edge rails within the resin concrete base, each run has been fitted with stainless steel mesh gratings. These create a finish that harmonises with the station’s environment and provide the strength to withstand high volumes of pedestrian traffic.
“Ebbsfleet is an excellent demonstration of how ACO systems can be integrated to provide a complete high performance drainage network across a site that needs to be kept operational around the clock,” says Peter Ridgway, Market Development Director at ACO Technologies. “Our design support services are based around the concept of ‘Value Engineering’ – a holistic approach that focuses on delivering maximum performance from minimal infrastructure. The resulting systems, which often embrace a range of proven technologies, are therefore cost effective and quick to install.” | |
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