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Drainage & Plumbing

Olympic Park, London

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ACO, designated as “Supplier of drainage systems (Olympic venues) to the London 2012 Games”, supported the Olympic build by meeting diverse and complex drainage requirements across many Olympic venues and infrastructure improvements. As a company, it reflected the excellence of the UK construction industry, providing wide-ranging and in-depth expertise with leading, innovative, high performance and sustainable drainage solutions.

And it certainly was. The huge success of the 2012 Olympic and Paralympic Games brought our nation together and made us proud to be British. The preparation involved needed world class engineering to produce the world class infrastructure the Olympic Delivery Authority demanded to make the Games such a success.

The task was huge. It transformed a run-down area in East London covering parts of Stratford, Bow, Leyton, and Hackney Wick with many new sports venues, the Olympic Village, the International Broadcast Centre and Main Press Centre. A new shopping centre, Westfield Stratford City, was also opened adjacent to the Olympic Park and other major works carried out on improved transportation infrastructures and extensive landscaping of areas.

The amount and quality of work required was a showcase of the brilliance of the UK construction industry. Working with many world class architects, engineers and contractors, ACO embraced the challenge to deliver often complex and bespoke drainage solutions across many of the Olympic developments – making it representative of the best of the UK construction industry.

Delivering for diverse projects

Olympic Stadium

An Olympic track has to be very precise to ensure any records set during the games are true and fair. The installation of the track started with the drainage channels, which are marked by the white internal perimeter. These required very precise tolerance levels on line and level to ensure the special Mondo sports running surface was uniform., Engineers and independent authorities checked everything was at the same level and line on many occasions, covering every stage through the building of the track to ensure very exact installation Accuracy was paramount and, for the final track to pass the exacting requirements, the substrate needed to be spot on. Standing water would also not be acceptable for Olympic conditions and the ACO drainage channels needed to provide guaranteed efficiency as well as fine installation tolerances.

aco2The IAAF and IOC standards for running tracks do not allow for heavy duty use but this track was also to be subjected to the rigours of the opening and closing ceremonies. The drainage channels needed to handle the loadings of the machinery and moving vehicles used in the ceremonies, including Spice Girls on top of taxis! Once the opening ceremony was complete, the stadium needed to be readied for the sports events to follow. This meant the track also needed to support the use of a 40 ton articulated vehicle used to re-turf the stadium. Assurance of the strength of the channels, which needed to handle similar incidental loads to drainage used on heavy duty highways or airports, was provided through onsite trials and independent testing.

In all ACO supplied around 850m of Sport Channel Drainage and 2000m of channel drainage system for areas including the 400m track internal perimeter and warm up tracks. Other areas included camera pits, podium areas, athlete entrances, the water jump, across vehicle, pedestrian entrances and sand pits. Although there appears to be only one jump sand pit when events are watched on the television, there are in fact four with run-ups at both ends so they can be used in either direction. This is to allow for wind direction to ensure any records set have not been wind assisted and to enable scheduling around other events happening in the stadium.

Aquatics Centre
ACO supplied large lengths of drainage for the Aquatics Centre including around 600m of stainless steel drainage channels and heel-safe gratings for the changing rooms. The drainage was custom built to match the architect’s drawings with complex interlocking channels requiring careful design, expertise and precise installation. Outside the centre, ACO supplied drainage for all of the plaza walkway outside the front gates to withstand loads of up to 25 tonnes with perforated gratings along with galvanised mild steel channels with laser cut slotted heel safe gratings for the temporary stands that were effectively bolted to the sides of the centre. Around the grass bank external to the building stainless steel channel was provided in three dimensional layouts to handle the rise and fall of this area.

A particular challenge at the Aquatics Centre was the number of different contractors used for different sections. ACO worked carefully to provide project management and liaise with all parties involved to ensure the drainage requirements across project sections tied together correctly and matched with the different claddings used.

Westfield Stratford City Shopping Centre
ACO’s ability to innovate and customise products to meet specific requirements was a benefit for the Westfield Shopping Centre development adjacent to the Olympic Park. In excess of 800m of drainage channel was provided covering the main shopping concourse, walkways, steps and bridges. Specially designed polymer concrete channels were fitted with discrete Brickslot gratings to meet the specific aesthetic requirements of the project with required hydraulic efficiency. The project gave another example of ACO expertise in providing bespoke solutions, working closely with its customers to ensure requirements for every aspect of an installation are met.

https://www.aco.co.uk

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