Reference

Weholite limits overflows and pollution in London, London, United Kingdom

Weholite limits overflows and pollution in London

Uponor’s Weholite technology was the key solution in a unique project in London, where the Lee Tunnel and Thames Tideway tunnel have the task of capturing an average of 39 million tonnes of sewage a year from the 35 most polluting combined sewer overflows (CSOs). An upgraded pipeline system was designed to reduce the number of overflows – and their environmental impact – from the sewers and treatment systems serving London. A particular aim is to limit pollution from the sewers and treatment systems connected to the Beckton and Crossness sewage treatment works.

Projektfakta

London, United Kingdom
Kommunalt byggeri
Kloakrørssystemer, Regnvand
Færdiggørelse: 2015

Uponors rolle

5km Weholite pipes in diameters 400mm – 3000mm, 12 large Weholite Modular boxes

London’s globally admired sewage system was created in the Victorian era. This system now faces the challenges of ongoing urbanisation and ever-growing sewer discharges.

Construction work on the Lee Tunnel began in 2010 and was completed by the end of 2015. In this 4.2 billion pound project, a Weholite culvert served as the final discharge point of the tunnel, transferring the sewer overflow to the extended Beckton Sewage Treatment Works. The Beckton Sewage Treatment Works was upgraded in 2013, with over 5km of Weholite high density polyethylene (PE-HD) pipe being supplied in different sizes ranging from 400mm to 3,000mm. The idea was to install the pipe for all of the associated chamber fabrications of this extensive, inter-process pipework project.

 

A trustworthy partner providing the best technology

The project included not only London’s deepest ever tunnel, but also one of the most complex subterranean networks in the world, characterised by multiple navigational and engineering challenges. This required an experienced partner with the best possible technology. MVB, a joint venture between Morgan-Sindall, Vinci Construction Grand Projects and Bachy-Soletanche, contacted

Uponor Project Services which, together with the licensee Asset International Limited, used its design expertise in land and marine applications to re-engineer the project. This involved the creation of a landmark design – the largest plastic outfall ever installed in the UK and one of the largest in the world in terms of diameter.

Uponor was able to bring deep expertise and enormous versatility to this ambitious project, which included 880m of 3,000mm diameter Weholite pipes laid as a twin culvert, alongside twelve large-scale Weholite modular PE-HD boxes. The project also involved the provision of installation, supervision and site services, and health and safety management.

The pipe-laying process consisted of a land section comprising 105m of twin culvert laid at 10m depths, in order to break through the tidal protection wall that prevents the Thames from flooding Europe’s largest treatment works at Beckton. A giant 7m x 11m x 5m Weholite modular box was used to house a 3,000mm spool section in order to complete the installation.

The operation to install the remaining 335 metres of twin culvert section in the River Thames was carried out by marine contractor CMP, alongside the Asset and Uponor PS partnership. This ambitious marine project was further complicated by the fact that the pipes had to be submerged under an existing jetty structure and sections of the project were often isolated by the tide (which rises and falls by up to 7 metres in the Thames), with no access by land.
 

The innovative grouting process saved time and money

Thanks to Uponor’s patented grouting process there was no need for risky, heavy concrete collars when ballasting the strings. Using Uponor’s innovative technology, the hollow Weholite profile was filled with an inexpensive and pumpable grout, which is a much safer and faster methodology. Since concrete collars were not used, a smaller trench was needed, the dredging operation was minimised and excavation volumes were drastically reduced. Since submarine excavations are much more expensive than dry land excavations, the ad-vantages of Weholite are clear.

Once the pipe strings were ready, they were towed individually upriver by tugboat and submerged. Specialist divers were used to bolt the innovatively designed quick-connect flanges joining each pipe string.

Additionally, steel sheet piling of over 11,000m2 was installed to allow the riverbed to be dredged so that the pipes could be laid free of obstruction. Over 28,000m3 of riverbed materials were dredged, with much of the dredged material being reused to backfill the
pipes once installed. This provided an environmental advantage based on vastly reducing the amount of materials taken off site and thereby reducing the carbon footprint.
 

The results speak for themselves

This successful project received positive comments from all sides. Emmanuel Costes, Construction Manager at MVB, declared: “We were very happy with the Weholite technolo-gy employed in the implementation of the Lee Tunnel Outfall pipeline. The specifications of the project were highly detailed, but the solutions provided by the Asset International/Uponor collaboration were impressive, ticking all of the boxes that this complex, and in many cases unique, project required.”
Christian Vestman from Uponor Project Services says: “The Uponor/Asset Partnership demonstrated the full depth of knowledge and versatility available within our organisations. This unique project really allowed us to show-case the impressive capabilities of Weholite – the results speak for themselves.”

Weholite limits overflows and pollution in London

london2015weholitemarinesection

Projektinformation

Projektinformation

Land
United Kingdom
Færdiggørelse
2015
Projekttype
Renovation
Bygningstype
Kommunalt byggeri

Partnere

Partnere

MVB

Uponor Infra Project Services

Lignende projekter

En nem og pålidelig regnvandsløsning

En nem og pålidelig regnvandsløsning

Det nye laste- og parkeringsområde på Volvos centrallager i Vantaa skulle asfalteres, hvilket krævede en pålidelig løsning til effektivt at kanalisere regnvand væk fra området. Uponors nye IQ-infiltrationsrør blev valgt som løsningen til at infiltrere og tilbageholde regnvand på grunden.

Stærkt, sikkert og fleksibelt

Stærkt, sikkert og fleksibelt

Skaraborgvatten i det sydlige Sverige havde brug for at udskifte sit gamle drikkevandsrør, som i dag er lavet af træ med et nyt polyethylenrør. Det nye system var ikke kun let og hurtigt at installere - det er også slagfast og tåler stor mekanisk belastning.
 
Unikt design sikrer kontrolleret afledning

Unikt design sikrer kontrolleret afledning

I Slagelse Kommune stiller man krav til at afledning af regnvand og spildevand adskilles, og derfor var det vigtigt, at også spildevandsløsningen på Nordre Ringgade blev opdateret i henhold til gældende lovgivning. Bygherren har fået en godkendt løsning, hvor spildevandet fra erhvervsejendommen i nr. 59 er blevet separeret fra regnvandet. Regnvandet ledes nu bort direkte fra den 2.500 m2 store parkeringsplads.
TV-Tower, Estonia

TV-Tower, Estonia

The tallest building in Estonia and the major cultural attraction, the Tallinn TV-Tower, is equipped with Uponor underground ventilation technology.
 New Uponor IQ –Storm water system - Sustainability and Quality in Road Infrastructure

New Uponor IQ –Storm water system - Sustainability and Quality in Road Infrastructure

In December 2011 Central Finland´s ELY –centre (The Centre for Economic Development, Transport and the Environment) started significant road constructing project in Jyväskylä. The aim is to create a new route between highways 18, 9 and 4, which helps reduce traffic jams and smoothes commutation. Uponor was chosen to be one of the suppliers due to our delivery capacity and overall cost efficiency.
Hybrid solutions for storm water management

Hybrid solutions for storm water management

City of Lahti is building new neighborhood called Ranta-Kartano. While they were constructing basic infrastucture the city saw the possibilty to reserve some ground space for storm water management. Now there is a test running for different kind of storm water management. Uponor is involved with new type of storm water filter.

Now that’s truly FAST

Now that’s truly FAST

Uponor IQ stormwater solution was installed in the Rakokivi's new community centre in Nastola, Lahti, so quickly that it surprised everyone involved.
Flow measurement reveals leaks in the water supply network

Flow measurement reveals leaks in the water supply network

The Water Monitoring Services developed by Uponor Infra enable real-time monitoring of water supply networks – deviations in the network can then be detected and located quickly. Pori, a coastal city in southern Finland, started monitoring an area on the periphery of its water supply network where leaks had caused problems over the years.
Secure tunnel trunk lines

Secure tunnel trunk lines

The safety requirements of the Kamppi-Erottaja-Kruununhaka tunnel built by Helsingin Energia are of the highest level. The contractor Destia selected the former KWH Thermopipe TSC Welding Sleeves for pipe joints. The end result is a pipeline where the insulation and surface material are uniform.
Life is grand for graylings in the pure waters of Ounasjoki River

Life is grand for graylings in the pure waters of Ounasjoki River

Located in Finnish Lapland, on the Ounasjoki River, the village of Kaukonen now treats its wastewater with a new WehoPuts 400 treatment plant. As in many rural areas, long distances make village treatment plants a more sensible alternative than transporting wastewater tens of kilometres to the nearest town.
Don’t count on luck to protect you from flooding

Don’t count on luck to protect you from flooding

With a bit of good luck, a property can overcome rains without flooding, but fewer and fewer count on such luck. As its stormwater solution, a waste power plant to be built in southern Finland chose one-hundred-metre long Weholite tanks.
 
Water treatment plant

Water treatment plant

Water company Ylä-Savon Vesi Oy needed a solution to improve the water quality in water supply process. The solution was an aeration tank made of Weholite.

Clean drinking water for 17,000 scouts

Roihu 2016 – the 7th International Finnjamboree organised by Suomen Partiolaiset - Finlands Scouter ry, was held at the Evo campsite in Hämeenlinna on 20–28 July 2016. A camp for 17,100 people was built in a forest area owned by Metsähallitus. Some 3,000 participants arrived from abroad – from about 40 different countries. Uponor delivered 7,600 metres of pipes to the area. The pipes were used to supply clean water and to lead grey water away from the area in a controlled manner.
Fighting against an ecological disaster in a world-record time

Fighting against an ecological disaster in a world-record time

Rapid action was critical when a sewage collector broke in Warsaw, Poland, causing a massive waste spill into the Vistula River. Uponor Infra’s crew worked 24 hours a day in order to stop the pollution of the river. A temporary pipeline was produced, delivered and connected in just eight days.

A smart retention system for an anti-flooding solution

A smart retention system for an anti-flooding solution

September 2018 saw the launch of the project for a stormwater drainage system in Rzeszów, almost 26 kilometres long, in the residential District of Budziwój, which partially coincides with the floodplain of the River Wisłok. One of the elements of this system is the retention canal. The project, scheduled for delivery by May 2020, will help to finally solve flooding problems which have been plaguing the residents of this region of Poland.

 

Sewage retention chanel

Sewage retention chanel

The construction of an innovative retention sewage canal in Rzeszów in southern Poland was recently completed using Weholite piping and manholes.
Sewage separation system

Sewage separation system

Construction of storm water collectors in Nowe Polkowice is one of the stages of a big investment concerning the drainage of the district.

Sea outlet of treated wastewater

Sea outlet of treated wastewater

A sea outlet of treated wastewater was initiated in Swarzewo. It is yet another of the many environmentally friendly projects that have recently been carried out in Poland where PE pipes were used.

Focus on sustainability

Focus on sustainability

Uponor Infra secure future sewer transport with Weholite. Uponor´s contribution to this complex and prestigious project is not just about supplying Weholite. It also includes project management and technical support such as design and calculations, customized products and field service with onsite installation - all coherently coordinated by Uponor Infra Project Services.
Weholite installed in Valdemarsvik Sweden

Weholite installed in Valdemarsvik Sweden

In 1960, the Fifalla River, which flows through Valdemarsvik into the Valdemars Bay, was culverted. At the end of the 19th century, Lundbergs Läderfabrik was built over the last part of the river at the outlet, but in 1960 a culvert came into place, up to the factory under Storgatan for which the Swedish Transport Administration is responsible.
 
Uponor Vault cleans the storm water

Uponor Vault cleans the storm water

As an industrial city and a port on an inlet of the Baltic Sea, Norrköping in southeastern Sweden strives to prevent pollutants from ending up in waterways. In an ongoing pilot project, pollutants carried by stormwater run-offs will be captured a massive, tailor-made Uponor Vault, a stormwater treatment chamber to ensure that the stormwater is purified before it reaches the Ljura Stream and finally the sea.
 
ProFuse installed in Borås Stad

ProFuse installed in Borås Stad

When the 250 millimeter pipes ProFuse replaces old 150 millimeter pipes in cast iron on a two-kilometer stretch in Frufällan, society will have a significant increase in capacity for the vital water supply. In addition, the new pipes provide fewer coatings and thus less service needs and better hygiene.
 
Ultra Rib 2 Blue first installation

Ultra Rib 2 Blue first installation

In connection with a project in Sigtuna, the first pipes Ultra Rib 2 Blue are delivered. A new generation of pipes with 70% reduced carbon dioxide emissions. A significant part of the oil for the pipes comes from the waste industry and is vegetable.
 
Sustainable sewer pipeline with Ultra Rib 2 Blue

Sustainable sewer pipeline with Ultra Rib 2 Blue

The Ultra Rib 2 Blue pipes were first launched in Sweden – this year, the pipes have already been installed at several locations. In Finland, a pilot installation was carried out in early autumn in the Jalkaranta district of Lahti, a few kilometres from the city centre.
Battery of retention tanks

Battery of retention tanks

In Mielec, modern storm water and snowmelt retention systems have been built, which will solve the problems with periodical flooding of streets and buildings in the city centre.