VolkerFitzpatrick is the principal contractor on the Ely Southern Bypass project. We are currently working for their subcontractor, Sword Construction. Here are some photos of one of our M42 boom pumps, placing concrete for the 300m long river bridge.
A pioneering wind farm development off the coast of Blyth has reached a notable milestone, with the first turbine foundation making its journey up the River Tyne on route to its final destination.
The GBFs have been constructed at the Neptune dry dock over the past 12 months by BAM Nuttall and these structures will be floated down the river to the Port of Tyne, where extra ballast will be added ahead of their ‘tow-out’ to the offshore wind farm site. Camfaud is involved at the Port of Tyne, pumping the extra ballast to secure the bases on the seabed.
The project will see five wind turbines with a total generating capacity of 41.5MW installed around 6.5km off the coast of Blyth. Once operational, they will generate enough low carbon electricity to power around 34,000 homes.
Concrete gravity based foundations (GBFs) form part of the project and are being installed using a new ‘float and submerge’ method – the first time this method has been used for offshore wind turbines. Designed and built by Royal BAM Group in the Neptune dry dock on the Tyne, the GBFs are being floated into position at sea and submerged onto the seabed to provide the support structures that act as the foundations for the installation of the wind turbines.
Each GBF is made up of more than 1,800 m3 of concrete and weighs over 15,000 tonnes when fully installed on the seabed. The structures have a total height of around 60 metres from the base to the access platform.
As previously reported, Crossrail now has a Learning Legacy website dedicated to “the collation and dissemination of good practice, lessons learned and innovation from the Crossrail construction programme”. The material, consisting of case studies, technical papers, documents, templates and datasets, is being “shared for use by other major projects and is relevant to clients, corporates, and suppliers from main contractors to small and medium enterprises.”
Recently a technical paper was published on the Learning Legacy website about the design, detailing and construction of the Moorgate shaft base slab – a 1750 m3 pour carried out using Camfaud pumps.
The technical paper makes for fascinating reading, especially in regard to the pour preparations. As the paper concludes: “Careful planning of the concrete pour from reinforcement detailing through to road closures to give access to a constrained site in the heart of the City of London, the contingency measures for disrupted concrete supply and the control of concrete temperature led to the successful execution of what was at that time Crossrail’s largest concrete pour.”
The February 2017 edition of the Concrete Society’s magazine Concrete, has an article about placing heavyweight concrete to form part of the Crossrail track slab in central London. The joint venture contractor installing the track on this project is ATC jv (Alstom, TSO and Costain), the concrete is supplied by London Concrete and the concrete pumping is being carried out by Camfaud.
Heavyweight concrete was considered the best option for this section of track bed in order to minimise the noise and vibration generated by the Elizabeth line when it is in service, especially in noise sensitive areas with recording studios above.
The heavyweight concrete used contains MagnaDense, a natural aggregate which is approximately twice as dense as normal aggregate. MagnaDense from LKAB Minerals is formed of black ferrimagnetic natural iron oxide (magnetite) and is mined in Kiruna and Malmberget in northern Sweden.
As the article notes, Camfaud Concrete Pumps chose a Putzmeister BSA2110HP static pump as the main pump, with another high-pressure pump being used as a backup and also to clean the lines using a water wash-out system. The concrete has been pumped through 1100m of pipeline, during which time there was approximately 40 tonnes of material contained in the line.
The same edition of Concrete magazine has an article about the new Medway valley crossing, built by BAM Nuttall to give access to the new 1000 home, Peters Village. Camfaud carried out the concrete pumping on this project too and further information about Camfaud’s work on this innovative bridge construction can be found here.
We have recently been working for Breheny Civil Engineering on their Outer Harbour works for Peel Ports Great Yarmouth. Breheny’s contract is for the construction of primary infrastructure and ground works for the offshore Galloper Wind Farm and East Anglia ONE Wind Farm projects. The contract includes the delivery of a yard storage and marshalling area, as well as the installation of heavy-lift quay facilities.Last year, ScottishPower Renewables selected Peel Ports Great Yarmouth as its port of choice for the construction and installation activities for its £2.5 billion East Anglia ONE offshore wind farm.
The turbines for the project will be supplied and installed by Siemens, which also announced Great Yarmouth as the assembly and installation base for Galloper Wind Farm which is currently being constructed by innogy SE on behalf of the project partners.
(Camfaud have had another involvement with the Galloper Wind Farm project – pumping concrete for North Midland Construction on their contract to construct a new onshore substation to link the export cables from the wind farm to the National Grid.)Siemens will supply 56 six-megawatt turbines for Galloper Wind Farm and 102 seven-megawatt turbines for the East Anglia ONE Wind Farm, which will have the combined capacity to generate enough energy for up to 836,000 homes a year.
To showcase the work that they have been carrying out for Peel Ports Great Yarmouth, Breheny commissioned a video which, shows a Camfaud boom pump working to construct an external slab for the yard storage and marshalling area. And, by happy coincidence, the video also shows our sister company Premier Concrete Pumping feeding a CFA piling rig of their customer Bachy Soletanche.
The Breheny video is embedded below: