Groundforce Shorco has supplied a space and time-saving solution to a project at a wastewater treatment works in Kent. Main contractor Clancy is installing a new storm tank for Southern Water at its Westbere wastewater treatment works near Canterbury. The new storm tank will accommodate surface water surcharges during periods of heavy rainfall, helping to prevent the discharge of raw sewage into the nearby River Stour. The tank comprises six precast concrete rings of 15m diameter installed one on top of the other to a depth of 6.5m. Each ring is made up of 16 interlocking caisson segments. The concrete segments are made by FP McCann and supplied through heavy-side materials distributor Keyline. To accommodate this tank, Clancy will dig an octagonal excavation to a depth of 7m. To support this, Groundforce Shorco is supplying 120 interlocking 6m GFI steel sheet piles driven to a depth of 6m using an excavator-mounted vibrating hammer Mueller MS4 supplied by Groundforce’s Piletec division. Once Clancy has installed the sheet piled cofferdam, it will excavate to a depth of about 1m at which point the top of the cofferdam will be braced using Groundforce Shorco’s modular hydraulic Mega Brace system. Clancy will then continue to excavate to formation layer before casting the base slab for the storm tank. “The excavation is octagonal because it makes no sense to dig a rectangular hole for a circular tank,” explains Clancy project manager Oliver Smart. “The octagonal excavation reduces the amount of muck away and requires less kit and less materials,” he adds. The excavation can follow the perimeter of the concrete tank closely while providing sufficient space to accommodate the bracing. “It’s a challenging design and excavation but the Mega Brace adaptability made it easier,” explains Groundforce Shorco area sales manager Arpad Nagy. “The Mega Brace is a modular bracing system and is very adaptable. It’s easy to install whatever the shape of the excavation and in this case, an octagonal excavation requires less equipment than a square one would. With the octagonal shape the muck away has been reduced by 20%, in this case 200m3. The excavation has been reduced with 10lm worth of sheet piling and 30lm worth of bracing. On this case we’ve managed to reduce the carbon footprint which helps reduce the environmental affect.” Groundforce is one of Clancy’s preferred suppliers of temporary works equipment. “I’ve worked with them on several projects,” says Oliver Smart. “The kit is great and Groundforce has a good design capability. They are providing on-going support and technical advice on this project.” Building, Design & Construction Magazine | The Choice of Industry Professionals

Several Doka SKE50 plus hydraulic and Xclimb 60 crane-lifted climbing formwork systems are being used to construct four new town centre towers that are at the heart of   Southwark Council’s Elephant and Castle redevelopment programme. The development will transform an area of South East London that was once compared to Piccadilly Circus on account of its dynamism and vibrancy. The huge works programme, which is being carried out in three phases, will lead to the creation of a new town centre. It will include 1,000 new homes, an upgraded Elephant and Castle tube station and the building of a cutting-edge campus for nearby London College of Communication, part of UAL University of the Arts London.  Contractor Morrisroe selected Doka to provide its design expertise and innovative hydraulic climbing formwork for the construction of the concrete cores that will form the three of the developments multi-storey tower blocks. Each block will comprise a standard concrete finish featuring Doka Framax Xlife panels. These are being installed using Doka’s SKE50 plus hydraulic climbing formwork. The crane-independent system includes an all-round enclosure that makes for safe, weather-shielded working at any height. Such is the SKE50’s robustness and reliability, it facilitates the floor-by-floor lifting of internal-external materials whilst protecting operatives carrying out the rebar process in preparation for casting concrete. The all-hydraulic crane-less climbing method optimises construction workflows by allowing greater flexibility in respect of cycling the SKE50 units’ repositioning. The fourth core, which was the first one to come out of the ground, was constructed using the Doka Xclimb 60 crane-lifted solution. This system was chosen primarily because this tower was much lower than the others. Additionally, it was originally specified as a cost-effective option due to the fact that the slab was programmed to follow, and it was completed before the cranes were too heavily utilized on the rest of the vast project. As well as reviving Elephant and Castle as a thriving social, cultural, and commercial hub, it’s estimated the town centre development will create 1,230 construction jobs over the ensuing decade. Approximately 2,000 full-time jobs will ultimately be created upon the wider development’s scheduled 2030 completion. This is a blue-chip project in a characterful, historical area of London that thanks to Doka and a myriad of skilled, visionary stakeholders, will see Elephant and Castle prosper as a redeveloped cultural hub. Building, Design & Construction Magazine | The Choice of Industry Professionals

Doka Slipform solutions ensured the rapid, efficient construction of a high-rise concrete core that is integral to a standout redevelopment in London’s financial district. The project involves the construction of 2 Aldermanbury Square, a 12 storey, grade A office building with market-leading sustainability credentials located in the City of London. The redevelopment will increase its lettable area significantly from 180,000 sq ft to 320,000 sq ft and incorporate public realm and amenity improvements designed to positively impact the local area. Selected by specialist concrete sub-contractor Keltbray to construct the building’s 65-metre core, Doka took an innovative approach to the formwork specification and assembly in order to accommodate 12 lift shafts, two lobbies and two staircases within the core’s construction.  Architectural demands led to the walls of the two cores being constructed using Doka’s Slipform system. The project’s size and scale demanded a solution that facilitated a safe build at rapid speed. Doka Slipform delivered on both counts. The system enabled the pouring of about 80m3 of concrete per working day on the vast concrete structure. An additional benefit of Doka’s Slipform system was its easy maintenance and cleaning capability, enabling its readiness to begin effective operation during the strict council-allotted time provided. Up to 11 deliveries of ready mixed concrete per day were required in the construction process, resulting in Doka’s Slipform system exceeding the originally planned ‘climb’ target of 1.7 metres per day by an additional 0.3 metres. Doka’s excellent working relationship with Keltbray was key to the concreting aspect’s success. Even before the commencement of site activities, the partnership began with Doka’s specialist Slipform supervisor overseeing pre-assembly works in Keltbray’s yard facilities, an alternative approach to Doka traditionally offering pre-assembly works and labour from its own yard.   With space severely restricted on-site, offsite assembly and delivery of the formwork was crucial in terms of operational safety, speed and efficiency. As part of its all-around customer service offering, Doka’s technical team attended the site to oversee the Slipform process and offer guidance when required.  Doka’s innovative incorporation of two concrete placing booms onto the rig via one concrete line was requested by the contractor and the move was instrumental in facilitating a smooth concreting process. Unique to Doka’s Slipform equipment is its compatibility with a variety of Doka proprietary rental equipment. Potentially, this means customers can reuse equipment on a range of Slipform projects, which has long-term benefits in terms of cost and sustainability. The Aldermanbury Square project offered further valuable proof of Doka’s ability to design and supply formwork solutions for projects ranging in profile and complexity. The team’s skill in meeting ad-hoc challenges throughout the programme ensured the core’s time-efficient, high-precision completion. Building, Design & Construction Magazine | The Choice of Industry Professionals

High specification formwork, from Doka, along with its innovative hydraulic climbing system, ensured the safe, speedy delivery of a specialist concrete core for a standout new office building in central London. The City of London’s urban planners were given the green light to Edenica, a 12-floor, 60-metre-high building for developer BREO Hundred. The new development is situated on the same site as the public house formerly known as the “Mucky Duck”, which was a prominent destination for sports journalists when the UK’s national newspaper publications were based in neighbouring Fleet Street. This building occupies a 140,000 ft2 site in Fetter Lane, with a pedestrian route and a sunken garden forming part of the development along with additional space for a new pub, more recently named “The White Swan”. Chair of the Planning and Transportation Committee at the City of London Corporation, Alastair Moss, said the scheme in Fetter Lane “represented strong ongoing developer confidence in the future of the City as a leading location” and an area to “spend time with friends, family and colleagues”. Main contractor Mace, is overseeing Edenica’s development, with the building’s core being formed and completed by specialist concrete sub-contractor Keltbray. It was achieve using Doka’s Top 50 wall formwork, supporting the need for a special high class architectural finish, and the Doka Framax systemised wall panels for the core’s primary solution. The large-area Top 50 formwork allowed for the design and pre-assembly of bespoke shuttering, which was essential to achieving the architect’s specialist wall pattern finish for the Edenica building, in good time and to the highest standard. Edenica’s central London location restricted the use of cranage due to strict site boundary limits being imposed to protect the surrounding live, public environment. It called for a hydraulic climbing system, which is where the Doka SKE50 plus system overcame the challenges presented by the serious lack of operational space. Firstly, the crane-independent SKE50 plus proved ideal for providing a coordinated anchor pattern around the form ties to facilitate the core’s external design pattern. Thanks to pre-project design capabilities from the Doka team, the anchors were concealed within the raised floor zones to avoid disrupting the finished wall’s aesthetic. The SKE50 plus’ strength and all-hydraulic performance was also key to its other vital function as part of the Edenica project. The new steel frame building contained a separate unsupported riser. It meant an innovative approach was needed to install temporary diagonal support struts at each floor to give the main core the structural strength to incorporate the non-standard element of the building’s design. Due to limited crane access, a winch was attached to the SKE50 plus’ platforms, enabling the struts to be lifted from a minus two level platform – designed by Doka – and affixed to the concrete core. The Edenica programme showcases how the Doka specialist formwork, paired with design expertise, effectively enabled the meeting of complex and demanding project challenges to ensure the safe erection of its concrete core within the clients’ seven-month timeframe. Furthermore, Doka’s formwork expert’s site visits ensured its pre-assembled platforms’ correct implementation. Along with the company’s productive consultations with Keltbray, it offered a fine demonstration of Doka’s all-round service delivery and commitment to a successful project outcome.  Building, Design & Construction Magazine | The Choice of Industry Professionals

Base Structures are announcing a new offering from its tensile fabric experts, Temporary Weatherproof Screening, promising to speed up building programmes and mitigate against weather delays on site. Base Screens are a new product that provide a unique and efficient solution for weatherproofing requirements on construction sites. Quick to install and demount, they are customisable to meet specific site conditions, which presents contractors with the chance to remove conventional cladding from a programme’s critical path. This accelerates the construction schedule and allow teams to progress with fit out works, staying ahead of any delays that the changing climate may bring. Andy Traynor, Director at Base Structures and Head of Installations and Health & Safety, said: “Our in-house expertise and engineering capabilities mean that we can design, manufacture and erect temporary weatherproof screens very quickly and to fit an existing structure, safeguarding construction works from external elements. By installing screens early in a project, we can provide a bespoke solution to ease the installation, movement and removal of the screens at various points in the building programme at specific fixing points. This means that there’s no requirement for scaffolding, minimising any potential for damage to works that have already been completed. We’re delighted to have been able to offer this innovative solution to several happy clients across the country, and with an increase in this kind of work, Base Structures are well placed to help teams find solutions to keep building programmes on track despite the rainfall and weather challenges we’ve seen this springtime.” Base Screens are made of PVC fabric that can cover large areas. They’re durable, easy to clean, fire retardant and a low-risk option, offering a less labour-intensive and safer solution than other more traditional weatherproofing options. Base Structures have produced case studies of their work in this area, which can be found via the links below: Project Resilience – Base Structures Engineered Temporary Weather Screens Dublin Terminal 2 Temporary Works Screens They have also produced a blog post detailing some of the benefits of adding weatherproof temporary screens to your next building project. For more information, case studies, images or quotes, please contact mail@basestructures.com or visit the contact us page. Building, Design & Construction Magazine | The Choice of Industry Professionals

Doka supplied the specialist formwork and technical support to facilitate a multimillion expansion of South Harbour in Aberdeen, the largest marine infrastructure project in Trust port history. The company worked in conjunction with contractor Beattie FRC on the harbour’s North Breakwater Crown Wall and surrounding main quay works. The overall aim of the ambitious development at the town’s largest harbour in Nigg Bay was to expand and diversify its use. The increased quayside space allows for more vessels to dock and significantly broaden trade opportunities around the North Sea. The 620m crown wall’s concrete construction was the result of detailed consultation between Doka and Beattie FRC. The contractor specified a two-pour solution in height involving 10m lengths boxes for what was an extremely largescale programme. With inclement weather a potential hinderance, the need for formwork that led to the wall’s construction within the client’s strict deadline was of the utmost importance. Doka had the knowhow and equipment to deliver the required solution. Equipped for building success  The Framax Xlife & Eurex 60 550 plumbing struts, MF240 platforms, WS10 Platforms from Doka were key to the safe, timely completion of the crown wall pours, which varied from 3m to 5.5m in height. The system’s rapid-forming capability was enabled by its optimised panel sizes which worked perfectly for the new desired pour heights. Furthermore, its forming times are kept to a minimum by widely-spaced form-ties of up to 1.35m apart. With the Framax Xlife unit, accuracy is not compromised for speed, with all connectors and accessories fitting seamlessly by the site team. On the crown wall quayside, the Doka MF240 climbing formwork optimised any on-site works as these were all assembled offsite by Doka in Sheffield. It meant that when they arrived at the site, they were almost immediately placed on the wall. The fully edge-protected, 2.40m-wide working platform enabled engineers regular, controlled access to the crown wall during its construction, as well as being able to plumb and align the Framax. Similarly, this process was duplicated for the WS10 platforms for the North Sea side of the wall. On this side of the wall the top pour contained a cope that had to be formed and supported. This helped inform the WS10 platforms’ design.  The cope’s load was transferred from the T7 spindles back to the platform and cast in wall anchors. This further intricate detail was easily accommodated by the range of quality Doka systems. The South Harbour’s expansion has achieved a number of beneficial outcomes. These include increasing the harbour’s water depth to 15m; enabled the berthing of 300m vessels; expanding laydown area to 125,000m2 and widening channel access to 165m. The harbour has opened to vessels, a number of which are docking at Nigg Bay for the first time thanks to the additional space the expansion has allowed. A huge investment that will profit the country as a whole, Doka is proud of its role in the regeneration of infrastructure that remains vital to the heritage and fiscal wellbeing of a grand Scottish town.   For more information visit doka.com Building, Design & Construction Magazine | The Choice of Industry Professionals