One of Scotland’s leading engineering specialists, Akela Ground Engineering (part of Akela Group), has launched an innovative precast concrete beam system which could dramatically speed up the delivery of new homes. ‘ABeam’ from Akela, features a special mechanical pinned joint, allowing for prefabricated ground beams to be installed in a
Winvic Construction Ltd, a leading main contractor that specialises in the design and delivery of multi-sector construction and civil engineering projects has been awarded a place on another public sector framework. The company has been selected as a contractor for Lot 5 of the Warwickshire County Council (WCC) Framework Contract
HS2’s first giant tunnelling machine – which launched almost 3 years ago – broke through today at the end of her 10-mile (16km) journey under the Chilterns, excavating the longest tunnel on the ambitious new rail project. The enormous 2,000 tonne Tunnel Boring Machine (TBM), named ‘Florence’, is one of
WJ Group, the leading road marking and highway safety company, has been recognised for its commitment to the environment after winning a Green World Award. The business was awarded for its Driver Behaviour Scheme, which in the first year saw a 40% reduction in road incidents involving its team members.
When your business involves sending hundreds of workers out to disconnected sites where they could be exposed to dangerous gases, safety should be a top priority. But how can real-time insights and actionable data help enable you to offer your workforce enhanced protection? This was the challenge facing Cappagh Browne
Yesterday, Perega, one of the UK’s leading structural and civil engineering consultancies, launches its innovative CO2 accounting tool: The Carbon Calculator. Affirming its commitment to sustainable construction, this evolutionary platform empowers Perega’s clients to assess the whole carbon footprint of their projects, from inception to completion. Importantly, it enables them to
Contractors working for HS2 have removed a 4,000 tonne bridge over the M42 to make way for the construction of the new high speed line across the motorway near the Interchange Station construction site in Solihull. A team of 20 demolition experts from Solihull-based firm Armac, working on behalf of
Thompsons of Prudhoe, a leading name in demolition and dismantling, proudly marks 75 years in style with increased turnover and profit for a consecutive year. One of Northumberland’s most established businesses, 2023 also saw the company make some significant investments, positioning itself for sustained success. “There’s no denying we’ve had
A team of 90 specialist engineers have completed the assembly of HS2’s giant tunnel boring machine (TBM) which will start digging the second bore of the 3.5 mile Bromford Tunnel into Birmingham next year. In an assembly operation to move sections of the machine into a 12-metre deep launch pit,
Anglo American and STRABAG UK are delighted to announce that the tunnel at the Woodsmith project near Whitby, in the north-east of England, recently reached 25.8km in length. This breaks the current record for the world’s longest single tunnel boring machine drive. STRABAG UK is working on behalf of Anglo
One of Scotland’s leading engineering specialists, Akela Ground Engineering (part of Akela Group), has launched an innovative precast concrete beam system which could dramatically speed up the delivery of new homes. ‘ABeam’ from Akela, features a special mechanical pinned joint, allowing for prefabricated ground beams to be installed in a matter of hours. By combining precise off site fabrication, alignment, interlocking sections with secure fastening, this joint design ensures a robust, reliable and efficient way to connect precast ground beams. Officially launched at the National House Building Council (NHBC) Construction roadshow in Glasgow last week, ABeam offers housebuilders an exciting new and sustainable alternative to ground beam installation. Officially approved and signed off on “live” projects by the NHBC, ABeam could help housebuilders lay foundations for up to three plots per day. Following significant investment, including the creation of a state-of-the-art fabrication facility at Akela’s headquarters near Glasgow, ABeam has been specifically designed to offer housebuilders greater efficiencies in delivery of new homes. Will Payne, General Manager, Akela Ground Engineering, said: “After reviewing the precast ground beam options available on the market, we found many still had considerable downsides, the use of pile caps, insitu concrete and tie bars were common, this requires sequencing of works and could also be impacted by weather conditions, all of this leads to considerably longer installation times. “Akela’s new ABeam precast system eliminates all of these issues and offers significant advantages in terms of construction install, performance and overall project quality.” Akela’s purpose-built facility at Thornliebank has the capability to fabricate the Abeams in a controlled environment to ensure quality and production output. The company has also invested in renewable ground source heating for curing the concrete to lower the carbon impact on the environment. Will Payne continues: “In addition to the significant time savings and efficiencies, our new ABeam system can be delivered using the same plant equipment for full the installation process, with lighter bearing pressures from our JCB JX driven piling rigs. “Using sustainable methods of production at our purpose-built facility and existing equipment for installation, we’re able to reduce our carbon footprint and offer developers a more modern and energy efficient alternative to existing ground beam options. For example, with ABeam, clients will no longer need to install crane platforms or hard standings at their sites.”Andy Borland, Construction Director at Bellway Homes, said: “Akela’s ABeam system has meant we were able to release plots to our wider teams a lot faster compared to other precast ground systems we have previously used. Our bricklayers were working on multiple plots within three days of pile installations at this development, rather than taking over a week and relying on the weather. We also didn’t need to install any crane platforms as Akela used the same excavated plant for the entire installation process, saving us money on preparatory works that other precast ground beams systems require.” Building, Design & Construction Magazine | The Choice of Industry Professionals
Winvic Construction Ltd, a leading main contractor that specialises in the design and delivery of multi-sector construction and civil engineering projects has been awarded a place on another public sector framework. The company has been selected as a contractor for Lot 5 of the Warwickshire County Council (WCC) Framework Contract for the Provision of Engineering and Construction Works. Work under Lot 5 of the Framework will typically involve the construction – or the design and construction – of major highway, structural and other civil engineering works, including agricultural buildings and waste management site works. As well as operational competences, Health and Safety (H&S) and design credentials will be a key focus. Winvic’s exemplary safety record for its highways works delivery, it’s robust H&S cultural change programme – Doing It Right – as well as its tried and tested digital design and Net Zero construction capabilities are all substantial merits which helped the company to secure the Framework place. Winvic’s team will initially spend time detailing compliance and operation processes and preparing for future projects. Winvic’s Social Value team will also be strategising and planning to deliver activities against the Themes, Outcomes and Measures (TOMs) set out by WCC. Rob Cook, Director of Civils and Infrastructure at Winvic, said: “As always, the Winvic team worked exceptionally hard to demonstrate our credentials in the tender for Lot 5 of Warwickshire County Council’s Highways Framework and we’re delighted to be working with another county council. We have collaborated with the local authority previously when delivering projects within their boundaries and we’ll now build on that already strong relationship.” “We’re delighted that WCC share our vision of putting the safety of the public and our workforce first, while balancing the speed of operations with budgets, and we aim to maintain our highways works zero per cent accident rate. Plus, with our long-standing commitments to social value, sustainability and innovation, we’re well placed to drive forward-thinking programmes, environmentally focused and Net Zero schemes that really make a difference to local people. The whole team is looking forward to delivering their first project under the highways Framework in Warwickshire.” For more information on Winvic, the company’s latest project news and job vacancies please visit www.winvic.co.uk. Join Winvic on social media – visit X (formerly Twitter) @WinvicLtd – and LinkedIn. Building, Design & Construction Magazine | The Choice of Industry Professionals
HS2’s first giant tunnelling machine – which launched almost 3 years ago – broke through today at the end of her 10-mile (16km) journey under the Chilterns, excavating the longest tunnel on the ambitious new rail project. The enormous 2,000 tonne Tunnel Boring Machine (TBM), named ‘Florence’, is one of 10 machines excavating the 32 miles of tunnel on the new railway linking London Euston with Birmingham and was the first to launch, in May 2021. The breakthrough is a major milestone for the HS2 project, which will almost halve journey times between Britain’s two largest cities, while freeing up space for more local services on the most crowded part of the existing West Coast Main Line. Two identical TBMs were used to create the twin-bore Chiltern tunnel, which stretches from the South Portal near the M25 to South Heath in Buckinghamshire. Parallel tunnels will carry north and south bound trains with a second TBM, named ‘Cecilia’, due to breakthrough in the coming weeks. Rail Minister Huw Merriman said: “This ground-breaking moment for HS2 demonstrates significant progress on the country’s largest infrastructure project, with ‘Florence’ paving the way for faster, greener journeys between London and Birmingham while supporting hundreds of jobs and apprenticeships along the way. “Today’s breakthrough of HS2’s longest tunnel highlights the momentum behind the project and the achievement is testament to the hard work and dedication of the 450-strong team helping deliver the line that will transform rail travel for generations to come.” Designed specifically for the geology under the Chilterns, each TBM is an underground factory – excavating the tunnel, lining it with 56,000 pre-cast concrete segments and grouting them into place as it moves forward at an average speed of 16m per day. Four similar TBMs are being used for the London approach tunnels, while another two will work on Birmingham’s Bromford tunnel. Preparations are also underway for the launch of two more machines to excavate the Euston tunnels. The breakthrough comes a week after HS2 published new research which shows how the impending arrival of high speed rail will drive a £10 billion economic boost for the West Midlands during the next 10 years, with a huge increase in new development around the two station sites. HS2 Ltd Executive Chairman, Sir Jon Thompson, said: “Today is an incredible day of HS2 and I’d like to thank the hundreds of people who’ve worked so hard over many years to make it happen. Once complete, HS2 will dramatically improve journeys between our two largest cities and also free up space on the existing mainline for more local trains. “We’ve still got a lot of work to do, but historic moments like today really underline the huge amount of progress that’s been made and the fantastic engineering skills we have on the project.” Both machines launched from the South Portal and are operated by HS2’s main works contractor, Align – a joint venture formed of three international infrastructure companies: Bouygues Travaux Publics, Sir Robert McAlpine, and VolkerFitzpatrick. The machines are made by TBM specialists Herrenknecht, in Germany. Each TBM is operated by a crew of around 17 people, working in shifts to keep the machines running 24/7. They are supported by over 100 people on the surface, managing the logistics and maintaining the smooth progress of the tunnelling operation. In total, more than 450 people have worked on the tunnels and in support teams on the surface over the last 3 years. This includes a dedicated team which produced 112,000 precision-engineered, fibre-reinforced concrete tunnel wall segments at a purpose build temporary factory at the South Portal who completed their work just before Christmas – and a team processing the spoil from the tunnels. Align’s Project Director, Daniel Altier said: “The typical drive for a TBM is 5-6km and therefore the challenges in completing at 16km drive should not be underestimated. “Florence and her sister TBM Cecilia were designed in partnership with Herrenknecht. They incorporate a number of innovations and technologies that have been introduced on TBMs in the UK for the first time, to enhance performance and safety. This includes ‘semi-continuous boring’, allowing our TBMs to build the rings that line the tunnels without pausing. “The mining of the tunnel is a fantastic achievement for not only the Align tunnelling team but also the earthworks team who have managed chalk excavated from the tunnels and placed on site, along with many other supporting functions. I would also like to acknowledge our supply chain partners, including TGT that provided the teams to operate the TBMs and MS with whom we designed and operated the slurry treatment plant, with 24 filter presses it is the largest in the world.’” The 3 million cubic metres of chalk and other material removed during the tunnelling is being used to create an ambitious grassland restoration project at the south portal, which will include 127 hectares of new landscaping, wildlife habitat and biodiverse chalk grassland. The chalk, which is pumped back through the tunnel in a slurry mixed with water, is processed at a slurry treatment plant at the south portal site where the flint is removed and water extracted before it can be reused in landscaping. Chalk grassland – a type of calcareous grassland – is habitat of international conservation importance mainly found on limestone and chalk valleys of south-east England and the Isle of Wight. Lime-rich, but low in nutrients, the thin soil holds little water and heats up quickly. These conditions encourage a huge variety of smaller herbs and wildflowers and over 40 species can be found in one square metre of grassland, including some of the UK’s rarest orchids and invertebrates. Only 700 hectares of chalk grassland exist across the whole of the Chilterns AONB. At its deepest point, the tunnel is 80m beneath the Chilterns and passes under the M25, local railway lines and twice under the River Misbourne. Extensive water quality, groundwater level and surface water flow monitoring was put in place prior to the start of construction, and
WJ Group, the leading road marking and highway safety company, has been recognised for its commitment to the environment after winning a Green World Award. The business was awarded for its Driver Behaviour Scheme, which in the first year saw a 40% reduction in road incidents involving its team members. The scheme uses WJ’s vehicle telematics system to accurately review each driver’s performance, encouraging consistently high standards of driving. The company analyses team members’ acceleration, speed, braking, driving style and fuel consumption, with rewards for the safest and most improved drivers. Upon introduction, the average WJ driver performance increased from 87.58% to 95.15%. Notably, WJ recorded a 40% drop in road incidents, as well as a 7.75% reduction in emissions in these early stages. Even more significantly, they have seen a continued increase in MPG, with a yearly average improvement of 21.91%. Competing against more than 500 other nominations, WJ will discover which level of award they have won following the ceremony in Sao Paolo, Brazil, on 25 March. The company’s winning paper will then be published in The Green Book. The awards are organised by The Green Organisation – an international, independent, non-political, non-profit environment group dedicated to recognising, rewarding, and promoting environmental best practice around the world. They are supported by the Environment Agency, the Chartered Institute of Environmental Health, the Chartered Institution of Wastes Management, and other independent bodies. Scott Logan, WJ Group Fleet and Engineering Director at WJ Group said: “At WJ, we are always looking for ways to be more sustainable, whether through the services we provide or our collaboration with the wider supply chain. The team continues to push boundaries when it comes to thinking about our impact on the environment, so it is fantastic to be recognised by the Green World Awards. “Our Driver Behaviour Scheme is one of the many innovative programmes we have introduced to reduce our emissions. Being successful in the Green World Awards makes us hungrier to continue to find new ways for the UK’s highways industry to become more sustainable.” For more information, please visit www.wj.uk/sustainability. Building, Design & Construction Magazine | The Choice of Industry Professionals
When your business involves sending hundreds of workers out to disconnected sites where they could be exposed to dangerous gases, safety should be a top priority. But how can real-time insights and actionable data help enable you to offer your workforce enhanced protection? This was the challenge facing Cappagh Browne Utilities Limited, a company specialising in repairing and maintaining wastewater networks across the southeast of England. Learn more about their experience. As managing director of Cappagh Browne, Jeff Birtwhistle plays a key role in helping to keep the sewers of south-east England flowing. With over 30 years’ experience in heavy civil construction, nuclear energy, and utilities, he’s always looking for innovative solutions to help the company improve the service it offers customers – and protect its workforce. So when we introduced our latest generation connected gas connector, the ALTAIR io™ 4 Connected Gas Detector, Jeff was keen for Cappagh Browne to be able to reap the benefits. “When it comes to innovation and new technology, MSA Safety is one of our key and invaluable partners,” he says. The gas detector that is redefining safety management Cappagh Browne was already using a previous generation connected gas detector from MSA Safety that provided certain data for remote monitoring to help protect workers and respond to emergencies. After experiencing those benefits, he wanted to enhance them even further with real-time data. The ALTAIR io 4 Connected Gas Detector does this, helping to give Cappagh Browne the chance to leverage new MSA Safety technology, improve overall business efficiency and response times, and significantly improve safety for workers. Offering immediate, on-site connectivity The power of the ALTAIR io 4 Connected Gas Detector lies in its combination of built-in cutting-edge, CAT-M LTE cellular connectivity and integration with the MSA Grid. Part of MSA Safety’s Connected Work Platform, the ALTAIR io4 Connected Gas Detector can be deployed in seconds, right out of the box. What’s more, no IT is required for updates because they are delivered securely from our cloud to your fleet. When the device is in its dock, it knows when it needs a bump test or calibration to be compliant and immediately starts to run the relevant test. And with industry-leading XCELL® sensors it can stand up to tough use in challenging conditions, resistance to extreme temperatures, the ability to withstand a 25-foot drop and a dust and waterproof IP68 rating. Real-time insights Matt Reid, Head of Fleet for Cappagh Browne, says they are already experiencing the benefits of upgrading to the ALTAIR io 4 Connected Gas Detector. “We have over 350 employees working across various remote sites in potentially hazardous environments. So real-time safety monitoring is important,” he explains. “Now, with the ALTAIR io 4, we’re able to use real-time data to establish who to use on a particular job because we can see what exposure they’ve had over the last week.” “We can send one person out to a job and then, if they need help, we can send another person out with an ID tag to ‘fob on’ to the same device. We can then track both people safely within the seven-day period to make sure they don’t exceed their exposure limit.” Keeping workers safe throughout the day Managing Director Jeff Birtwhistle adds that it’s the ability to get immediate feedback when a worker’s exposure limit to dangerous gases has been reached that is taking the company’s safety management to new levels. “Being able to intervene on a worker’s behalf and pull them out of a job to protect them is fantastic. It means we can keep our most valuable asset –our people – safe,” he says. Improving compliance The real-time data and actionable insights offered by the ALTAIR io 4 Connected Gas Detector are also helping to simplify regulatory compliance for Cappagh Browne and enabling supervisors to identify behaviors that don’t meet safety standards, which can help make workers more accountable. Since introducing the solution, the company has experienced zero safety alarms. However, as Matt Reid explains, a worker was able to use the inbuilt alarm to call for help in an unusual situation. “We had an instance where a guy became physically locked out of his vehicle and didn’t have his phone on him. He pushed the alarm button to call for help and we were able to get a second set of keys over to him to unlock the vehicle and get him on the road again.” The partnership with MSA Safety continues Both Jeff and Matt know that at some point in the future they will inevitably be looking for new safety enhancements that they cannot envisage right now. But they are confident that when that time comes, MSA Safety will be there, just as it has been for real-time gas detection monitoring. For now, they are enjoying the enhanced safety that the ALTAIR io 4 Connected Gas Detector offers their workforce. Fleet manager Matt Reid sums up the benefits. “Using ALTAIR io 4 means we can send our employees home safely to their families every night and that Cappagh Browne can see them again every morning when they turn up for another day’s work.” Keen to see what this technology can do for safety management at your business too? Watch our case study video and find out more about how the ALTAIR io 4 Connected Gas Detector is redefining safety. Watch the video to find out more about Cappa Browne’s experience using MSA Safety’s ALTAIR io 4 Connected Gas Detector. Building, Design & Construction Magazine | The Choice of Industry Professionals
Yesterday, Perega, one of the UK’s leading structural and civil engineering consultancies, launches its innovative CO2 accounting tool: The Carbon Calculator. Affirming its commitment to sustainable construction, this evolutionary platform empowers Perega’s clients to assess the whole carbon footprint of their projects, from inception to completion. Importantly, it enables them to make greener material choices to faster, and better, achieve a more sustainable built environment. The calculator has been developed by the firm’s dedicated, in-house Net Zero Carbon Group and uses a sophisticated algorithmic framework, analysing material emissions data to achieve lower-carbon outcomes. Harnessing the power of the latest digital technology, the calculator seamlessly integrates within the Revit model, offering a comprehensive carbon impact assessment. Key features of the Perega Carbon Calculator include: Commenting on the impact and efficacy of the tool, Perega’s Digital Engineering Lead, James Washbourne, says, “With the built environment responsible for 40% of global emissions, the imperative for lower-emission practices has shifted from optional to essential. Our Carbon Calculator makes another step towards achieving more sustainable projects. Moving away from manually crunching static spreadsheets to a predominantly automated process means better pinpointing of carbon hotspots and empowering our clients to make correct material substitutions during the design phase, without compromising on quality. “Ensuring user-friendliness was crucial, our clients are incredibly busy and need to be able to read and understand the data quickly to make informed decisions. As such, we developed the calculator to deliver clear and simple comparisons for effective decision-making”. For further information about Perega and its groundbreaking carbon accounting tool, please click here. Building, Design & Construction Magazine | The Choice of Industry Professionals
Contractors working for HS2 have removed a 4,000 tonne bridge over the M42 to make way for the construction of the new high speed line across the motorway near the Interchange Station construction site in Solihull. A team of 20 demolition experts from Solihull-based firm Armac, working on behalf of HS2’s main works contractor in the Midlands, Balfour Beatty VINCI (BBV), carried out the demolition in a 52 hour operation. The operation was coordinated in conjunction with National Highways, who were able to open the motorway section between Junctions 6 and 7 on Monday at 1.30am, which was three and a half hours earlier than planned, reducing disruption to road users. The M42 was closed in both directions late Friday evening, 9 February, and the workforce worked throughout the night to prepare the area for the demolition activities. Starting at 7am on Saturday 10 February, the demolition team used a 100 tonne excavator and a further seven 50 tonne demolition excavators to complete the operation, supplemented by numerous breaker and cruncher attachments. Six articulated dumper trucks transported the excavated material to a local stockpile where it will be crushed and reused on HS2’s haul roads and work sites. Once the bridge was demolished at around 3pm on Saturday , the debris was removed, the matting taken away, carriageway cleaned, and central reservation and verge restraint systems reinstated, ready for the motorway to be re-opened at 1.30am on Monday 12 February. It is the second of two 4,000 tonne bridges in close proximity over the M42 which needed to be demolished so HS2 can build a new twin box structure, which will carry the high speed line over the motorway in the future. The operation by Armac to demolish the first bridge took place in August last year. The original plan was to demolish the second bridge next year. However, due to two drivers on the motorway below recently striking the bridge, National Highways asked HS2 to demolish the bridge sooner because it had become unsafe. Alan Payne, Senior Project Manager at HS2 Ltd said: “This operation, delivered by local specialist firm Armac, is another step forward in the construction of HS2 in the Midlands. I’d like to thank the whole team for delivering the bridge demolition ahead of schedule, reducing disruption to roads users.” Oliver Shore, Construction Director at Balfour Beatty VINCI said: “The safe and successful demolition of this 4,000-tonne bridge is another huge achievement for Balfour Beatty VINCI. This was a complex operation, made even more challenging because of the limited time we had to plan and deliver this critical work. I’m really proud of how the team responded, showcasing their skill and experience in these demanding circumstances. “It’s the second bridge removal we’ve delivered along the same stretch of motorway in just six months. Like the previous demolition last summer, every effort was made to minimise the impact on road users through careful planning and close collaboration between HS2 and National Highways.” Noel McLean, Technical Director of Armac said: “We were delighted to work with our partners HS2 and BBV again, for the demolition of the M42 North Bridge. Our primary aim is always to complete the project safely and in a controlled operation. Thankfully, the project was completed well ahead of schedule. Another successful project from the Armac ‘Bridge Busters’ and all of the BBV team.” Frank Bird, National Highways Senior Network Planner said: “We are delighted to have been able to reopen the motorway for the benefit of road users some three and a half hours earlier than planned and thank people for their ongoing patience since the bridge was hit last month. “This has been a challenging task as normally a demolition such as this would be planned over many months. Instead, everyone involved was able to mobilise resources to get it down in a matter of weeks. It has been a terrific collaborative effort with HS2 Ltd and all others involved and one I am sure road users will appreciate with all lanes now open.” This year, the BBV team will start to construct the huge twin box structure, which will carry HS2 trains over the M42. Enabling works commence in March and piling is due to commence in August. This new structure, measuring 300 metres length by 25 metres width will cover around 130 metres of the M42 and will be built in position whilst maintaining three lanes of traffic flowing on the M42. This section of HS2 railway lies between Interchange Station in Solihull and the Delta Junction, a triangular section of the line which enables trains to either travel into Birmingham’s Curzon Street Station or carry on north where trains will join the West Coast Main Line to Manchester. HS2 has already built a new, improved road structure and roundabout in this area, to improve the circulation of traffic around the HS2 railway line and connect the existing road network to the new Interchange Station. Building, Design & Construction Magazine | The Choice of Industry Professionals
Thompsons of Prudhoe, a leading name in demolition and dismantling, proudly marks 75 years in style with increased turnover and profit for a consecutive year. One of Northumberland’s most established businesses, 2023 also saw the company make some significant investments, positioning itself for sustained success. “There’s no denying we’ve had an incredible 24 months within our business, which is testament to the achievements of our team and the support of our clients and wider supply chain – we can’t thank you all enough,” said Managing Director, Nick Shilling. “Whilst we recognise and celebrate this achievement, what we remain focused on is ensuring our business is set up for success for the next 75 years and beyond. “The same ambition and passion that our workforce have shown over the last seven decades is what we take forward into our next phase of growth which is why the reinvestment of profit back into the business through various investments is incredibly significant to help us achieve our goals and continue to innovate within our industry.” The family-run business is forecasting an increase in turnover from £69.7m to £82.7m in its newly published annual report and accounts for the financial year ending March 2023. The company’s strategic, multi-million-pound investments, include two washing plants for quarries at Springwell, Gateshead and Anick Grange, Northumberland (£10m), the acquisition of Lakeland Minerals Ltd, Brampton a sand and gravel quarry and a continued investment updating its 86-strong fleet of wagons and 160-strong plant and machinery. Work is underway at the Anick Grange with investment to carry out bunding, road widening works and create a new welfare unit. Boosting long-term biodiversity, the team are extracting sand and gravel from the site which is situated alongside the Tyne near Hexham. Once complete, it will create a new lake and wildlife sanctuary, and improve public access to the river. Playing an active role within the community is something Thompsons of Prudhoe remain committed to with various activities ran throughout the year to support charities including St Oswald’s Hospice and Tiny Lives as well as the sponsorship of grass roots sports clubs and attending local school and college career fairs. 2023 also saw the team receive international acclaim at the World Demolition Awards in Toronto for its successful demolition of the former Redcar Steelworks site. Completing the project ahead of schedule, under budget and with no incidents, the project included one of the largest single explosions in the past 75 years. Looking ahead, the group remain committed to its core services in demolition, dismantling, earthmoving, quarrying, waste management, recycling and haulage, asbestos and its offshore decommissioning facilities – a joint venture with Port of Blyth. Founded in 1948, the business retains its Prudhoe Head Office and continues to go from strength to strength as one of the UK’s trusted specialist demolition contractors. Building, Design & Construction Magazine | The Choice of Industry Professionals
A team of 90 specialist engineers have completed the assembly of HS2’s giant tunnel boring machine (TBM) which will start digging the second bore of the 3.5 mile Bromford Tunnel into Birmingham next year. In an assembly operation to move sections of the machine into a 12-metre deep launch pit, two 600 tonne cranes lifted the huge 125 tonne cutterhead into place at the front of the 125 metre long machine in the pit bottom. The first TBM, named ‘Mary Ann’ after Mary Ann Evans – the real name of Victorian writer George Eliot who was born in Nuneaton – started digging the first bore from the east portal site near Water Orton in August this year. It has already built more than 500 tunnel rings, which is 0.6 miles of the 3.5 mile long tunnel between North Warwickshire and Washwood Heath in Birmingham. The name of the second TBM will be revealed before it launches in Spring next year. ‘Mary Ann’ is set to break through at the end of 2024, with the second TBM planned to complete its journey in the middle of 2025. Both TBMs will remove 1.87 million tonnes of excavated material, which will be sifted at the on-site slurry treatment plant and reused on HS2’s nearby sites at Delta Junction, where a complex network of nine viaducts is being built. HS2’s Senior Project Manager Catherine Loveridge said: “With the first TBM ‘Mary Ann’ well on her way building the tunnel to take high speed trains into central Birmingham’s Curzon Street Station, it’s fantastic to see the second TBM assembled and being prepared to start digging. “We’re now at peak construction, with over 9,750 people working on HS2 in the West Midlands and around 450 people working on this site, including many from the local area. Launching the second TBM next year means there will be more exciting jobs up for grabs for local people.” The majority of the second TBM, including the gantries and the centre part of the cutterhead, have been re-used from TBM ‘Dorothy’ after completing the one-mile twin bore Long Itchington Wood Tunnel in Warwickshire earlier this year. Disassembled sections of ‘Dorothy’ have been moved to the Bromford Tunnel portal site near Water Orton over the last few months, where they have been lowered and reassembled into the underground launch area. At 8.62 metres in diameter, the Bromford Tunnel is smaller than the 10 metre diameter Long Itchington Wood Tunnel because trains will be travelling slower on the approach into Birmingham Curzon Street Station. For this reason, the TBM needed a new outer part cutterhead and a new shield, which were manufactured by Herrenknecht in Germany. The full Bromford Tunnel programme is being delivered by around 450 people working for HS2’s contractor Balfour Beatty VINCI (BBV). A specialist tunnelling team, including apprentices working for BBV’s sub-contractor Tunnelcraft will operate the TBM 24/7, with each bore taking around 16 months. Jules Arlaud, Tunnelling Director for Balfour Beatty VINCI said: “Completing the assembly of the second tunnel boring machine is another major achievement for the team working on HS2’s Bromford Tunnel – a complex section of the new high-speed railway. “Getting to this stage has required a huge amount of planning and preparation, including the disassembly and transportation of ‘Dorothy’ parts from Warwickshire, which forms the majority of the second TBM. “Over the next few months, the team will be busy testing, checking and carrying out the final preparations, to make sure the machine is ready to start digging in spring next year.” The Bromford Tunnel programme includes designers from Balfour Beatty VINCI’s Design Joint Venture, made up of Mott MacDonald and SYSTRA (MMSDJV). Rosa Diez, Tunnels Discipline Lead for MMSDJV: “Seeing the second TBM in position, ready to start, is a proud moment for our tunnelling team. We have learnt so much from the excavation of the Long Itchington Tunnel by our ‘Dorothy’ TBM, which has helped get ‘Mary Ann’ well on her way through the Mercia Mudstone in the Bromford Tunnel. The learning will continue for this second TBM, which once named and launched next year, will also become part of our family”. A total of 41,594 concrete segments will create 5,942 rings to make the twin bore tunnel, with each ring weighing 49 tonnes. The segments are being produced at Balfour Beatty VINCI’s pre-cast factory at Avonmouth near Bristol. In the concrete mix used at the factory 40% of the cement is replaced with Ground Granulated Blast-furnace Slag (GGBS) which has a much lower carbon footprint than traditional cement. 3D scanning is used in the production process of the segments to guarantee accuracy. Building, Design & Construction Magazine | The Choice of Industry Professionals
Anglo American and STRABAG UK are delighted to announce that the tunnel at the Woodsmith project near Whitby, in the north-east of England, recently reached 25.8km in length. This breaks the current record for the world’s longest single tunnel boring machine drive. STRABAG UK is working on behalf of Anglo American to construct the world’s longest conveyor tunnel for a permanent mineral transport system (MTS) which will transport tens of millions of tonnes of polyhalite from under the North York Moors National Park. Polyhalite is a naturally occurring mineral which will then be crushed and granulated to create POLY4 – a unique multi-nutrient fertiliser which is suitable for organic use. It will be used in worldwide fertiliser programmes to help boost crop yields, plant strength and improve soil structure. World-leading tunnelling specialists, STRABAG, have been boring under the North York Moors National Park since June 2019 using a single (Hard Rock) Herrenknecht tunnel boring machine (TBM) to build the 37km tunnel with an internal diameter of 4.9 metres. The TBM was named Stella-Rose by a local primary school pupil, with Stella, meaning star in Latin, and Rose, after the famous local landmark Roseberry Topping. The former record was set by a water conveyance tunnel project in the Middle East which was also built using a Herrenknecht tunnel boring machine. Once completed, Anglo American and STRABAG will have set a new world record and are expecting this to be confirmed by Guinness World Records. STRABAG UK directly employ 450 staff on the project, 75% of which are local to Teesside, and has also prioritised the use of local construction partners and suppliers, creating many more jobs for the region. Managing Director for STRABAG UK, Simon Wild, said: “We are extremely proud of the team at the Woodsmith project for reaching this incredible milestone and safely passing the current world record set for a single bored tunnel drive. This is another example of our growing presence in the north- east of England and the UK, demonstrating our industry leading expertise.” Andrew Johnson, Woodsmith Project Director, added: “We are delighted to achieve such an incredible milestone in the UK as part of our pioneering project. It is a demonstration of the fruits of teamwork with our partners. We are now focused on looking forward and setting a new world record every day. The Woodsmith tunnel is a fundamental part of our commitment to create a sustainable mine with minimal environmental impact.” Building, Design & Construction Magazine | The Choice of Industry Professionals
