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August 5, 2024

CSMANLTD Underpinning and Basement Construction London

CSMANLTD expertise in underpinning and basement construction London has enabled us to successfully complete a wide range of challenging projects across London. Our case studies demonstrate our ability to deliver complex, high-quality solutions that enhance the stability, functionality, and value of properties. Below are some of our standout projects in underpinning and basement construction, highlighting our commitment to excellence, innovation, and client satisfaction.

Residential Basement Extension in Fulham

Project Overview: A homeowner in Fulham wanted to extend their living space by adding a basement level to their Victorian terraced house. The project required careful planning and execution to ensure the stability of the existing structure while maximizing the new space’s utility and aesthetics.

Challenges:

  • Working within the tight confines of an existing structure.
  • Ensuring the stability of the neighboring properties during excavation and construction.
  • Integrating modern amenities and design elements in a historically significant building.

Solutions:

  • Precision Underpinning: Our team used a phased underpinning approach to stabilize the existing foundation before beginning the excavation. This method ensured the safety and stability of the structure throughout the project.
  • Advanced Excavation Techniques: Utilizing state-of-the-art machinery and careful planning, we minimized disruption and efficiently excavated the new basement space.
  • Customized Design: Collaborating with the homeowner, we designed a basement that included a home theater, gym, and additional living areas, blending modern design with the home’s historical character.

Outcome: The project was completed on time and within budget, resulting in a beautifully integrated basement extension that significantly enhanced the living space and value of the property. The homeowner was delighted with the transformation, praising the seamless integration and high-quality finish.

Commercial Basement Construction in Soho

Project Overview: A commercial property in Soho required additional space for a new restaurant and bar. The client wanted to construct a basement level that would house the kitchen, storage, and additional seating, all while maintaining the building’s structural integrity and minimizing disruption to the busy area.

Challenges:

  • Excavating and constructing a basement in a densely populated, high-traffic urban area.
  • Ensuring minimal disruption to neighboring businesses and pedestrians.
  • Meeting stringent health and safety regulations for a commercial kitchen and public space.

Solutions:

  • Innovative Underpinning: We employed advanced underpinning techniques to support the existing structure while excavating the new basement. This ensured the building’s stability and minimized risk.
  • Efficient Project Management: Careful planning and scheduling allowed us to work efficiently, coordinating with local authorities and stakeholders to minimize disruption and maintain safety.
  • Compliance and Quality: Our team ensured that all aspects of the basement construction met health and safety standards, providing a safe and functional space for the new restaurant and bar.

Outcome: The new basement was successfully integrated into the commercial property, providing the client with a spacious, functional area for their restaurant and bar. The project was completed with minimal disruption to the surrounding area, and the new establishment quickly became a popular spot in Soho.

Underpinning and Basement Conversion in Hampstead

Project Overview: A family home in Hampstead required underpinning and a basement conversion to create additional living space and address foundation issues. The project involved stabilizing the existing structure and converting the damp, unused basement into a habitable area.

Challenges:

  • Addressing existing foundation issues and ensuring long-term stability.
  • Waterproofing the basement to create a dry, comfortable living space.
  • Maintaining the aesthetic and structural integrity of the property.

Solutions:

  • Comprehensive Underpinning: Our team conducted a thorough assessment of the foundation issues and used advanced underpinning techniques to stabilize and strengthen the structure.
  • Effective Waterproofing: We implemented a comprehensive waterproofing system, including tanking and drainage, to ensure the new basement space was dry and habitable.
  • Quality Finishes: The basement conversion included the creation of a new living room, bedroom, and bathroom, all finished to a high standard to match the rest of the home.

Outcome: The underpinning and basement conversion project was a success, providing the family with additional, high-quality living space and ensuring the long-term stability of their home. The new basement area is dry, comfortable, and seamlessly integrated with the rest of the property.

Large-Scale Underpinning Project in Kensington

Project Overview: A large, multi-story building in Kensington required significant underpinning work to address subsidence issues and ensure the structure’s stability. The project involved extensive planning and execution to stabilize the foundation and prevent further movement.

Challenges:

  • Addressing severe subsidence and ensuring the building’s stability.
  • Coordinating a large-scale project in a densely populated urban area.
  • Minimizing disruption to residents and nearby properties.

Solutions:

  • Detailed Assessment and Planning: Our engineers conducted a thorough assessment of the subsidence issues and developed a comprehensive underpinning plan tailored to the building’s specific needs.
  • Phased Underpinning Approach: We used a phased approach to underpin the foundation, working systematically to stabilize the structure while minimizing disruption.
  • Ongoing Monitoring: Throughout the project, we monitored the building for any signs of movement, ensuring that the underpinning work was effective and the structure remained stable.

Outcome: The large-scale underpinning project was completed successfully, stabilizing the building and preventing further subsidence. The project was managed efficiently, with minimal disruption to residents and neighboring properties. The building is now secure, with a stable foundation that ensures its longevity.

Conclusion

CSMANLTD’s expertise in underpinning and basement construction has enabled us to deliver outstanding results across a range of challenging projects. Our commitment to quality, innovation, and client satisfaction is evident in every project we undertake. Contact us today to learn how our underpinning and basement construction services can enhance the stability and value of your property.

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CSMAN LTD0 commentBasement Construction, Case Studies, Construction, Main, Underpinning
August 3, 2024

Maximizing Your Home’s Potential with Basement Construction in London

In the bustling city of London, where space is at a premium, homeowners are increasingly turning to basement construction as a solution for expanding their living areas. Whether you’re considering an under-house basement construction or transforming an existing basement, this innovative approach can significantly enhance your property’s value and functionality. At CSMANLTD, we specialise in providing top-notch basement construction services tailored to meet the unique needs of London homeowners.

Why Choose Basement Construction?

  1. Optimal Space Utilization: One of the primary reasons homeowners opt for basement construction is the efficient use of space. In a city where every square foot counts, creating a basement allows you to add substantial living space without altering the exterior footprint of your property. This is particularly beneficial in densely populated areas where expanding outwards is not an option.
  2. Increased Property Value: A well-designed basement can significantly boost your property’s market value. Potential buyers often view additional space as a valuable asset, whether it’s used for an extra bedroom, home office, gym, or entertainment area. By investing in basement construction, you’re not only enhancing your living experience but also making a smart financial decision.
  3. Customised Living Areas: Basement construction offers the flexibility to create spaces that cater specifically to your lifestyle needs. From luxurious home cinemas and wine cellars to practical utility rooms and guest suites, the possibilities are endless. Our team at CSMANLTD works closely with you to design and build a basement that perfectly aligns with your vision.

The CSMANLTD Advantage

  1. Expertise and Experience: With years of experience in the industry, CSMANLTD is a trusted name in basement construction in London. Our skilled professionals are well-versed in the latest construction techniques and adhere to the highest standards of quality and safety. We handle every aspect of the project, from initial planning and design to construction and finishing touches.
  2. Comprehensive Services: At CSMANLTD, we offer a comprehensive range of services to ensure a seamless construction process. Our offerings include:
  • Initial Consultation and Planning: We begin with a thorough assessment of your property and discuss your specific requirements and preferences.
  • Design and Architecture: Our expert designers create detailed plans and architectural drawings that align with your vision and comply with local regulations.
  • Construction and Project Management: We manage the entire construction process, ensuring timely completion and minimal disruption to your daily life.
  • Finishing and Customisation: From flooring and lighting to bespoke fittings, we handle all the finishing touches to create a polished and functional space.

3. Tailored Solutions: We understand that every homeowner’s needs are unique. That’s why we offer tailored solutions that cater to your specific requirements. Whether you’re looking to create a cozy family room or a state-of-the-art home gym, we ensure that your basement construction project is customised to meet your exact needs.

Sustainable and Energy-Efficient Solutions

At CSM Ltd., we prioritise sustainability and energy efficiency in all our projects. We use high-quality, eco-friendly materials and incorporate energy-efficient systems to reduce your home’s carbon footprint. Our commitment to sustainability not only benefits the environment but also helps you save on energy costs in the long run.

Conclusion

Basement construction is a smart and innovative way to maximise your home’s potential in London. By choosing CSMANLTD, you’re partnering with a team of experienced professionals dedicated to delivering exceptional results. Whether you’re looking to create additional living space, increase your property’s value, or design a customised area that suits your lifestyle, we have the expertise to bring your vision to life. Contact us today to explore the endless possibilities of basement construction and start your journey towards a more spacious and functional home.

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CSMAN LTD0 commentArchitectural Design, Basement Construction, Concrete Frames, Construction, Design and Build, Foundations, Piled Foundations, Planning Applications, Steel Frames, Structural Engineering, sub structures, Super Structures, Superstructures, Underpinning
Basement Waterproofing
April 19, 2024

The Importance of Basement Waterproofing London

Basement damp is a serious problem that can cause structural damage, health issues due to mould, and loss of usable space. It is important to treat it promptly to prevent further damage and costly repair bills. 

One of the most effective solutions is internal waterproofing, which can be performed on an existing property or during new construction. This process is known as tanking. 

Basement waterproofing delta membrane 

Basement waterproofing delta membrane: One way to help keep water out of basement walls is with a dimple mat, or delta membrane. This product is a sheet of high-density polyethylene combining recycled and virgin material studded with 5/16-inch tall dimples that can be applied to foundation walls. It creates an air gap that eliminates hydrostatic pressure against the wall and allows water to run down the concrete footing and away from the wall. 

Another popular option for waterproofing a basement is the use of a cavity drainage system. This system uses a series of internally or externally dimpled membranes, as well as perimeter drainage channels and hidden sump pumps to control groundwater ingress and evacuate water to a drainage point. This method of waterproofing is perfect for new build construction, as well as existing renovations. 

The most reliable basement waterproofing systems include a combination of different methods, tailored to specific conditions and site requirements. Professional waterproofing contractors can assess a property and recommend the best solution for its unique environment. 

In addition to waterproofing a basement, a professional contractor can also install a damp proof course and a vapor barrier. In his Wingnut Real-World Tests, GBA technical director Peter Yost tested three interior moisture control products: UGL Drylok Extreme, Koster NB1 Grey, and Xypex Concentrate. The results were impressive. All three of the systems performed well, but Xypex had the best overall performance, and was most effective against a range of potential problems. 

Basement WaterProofing Cavity Drain Systems 

Basement waterproofing cavity drain: A cavity drain system, also known as a Type C waterproofing system, creates a controlled drainage path for water that penetrates the foundation walls or floor. Here’s a breakdown of its key components: 

  • Drainage Membrane: A high-quality, water-resistant membrane is installed on the interior walls and floor of your basement. This membrane features a dimpled or studded pattern, creating a cavity between the membrane and the foundation. 
  • Drain Channels: A network of channels is installed at the base of the foundation walls, collecting any water that seeps through the walls or floor. 
  • Sump Pump: A sump pump is placed within a pit at the lowest point in the drainage system. This pump automatically activates when the water level reaches a certain point, efficiently pumping the collected water away from your basement, typically discharging it to a drain line or exterior drainage system. 
Benefits of Cavity Drain Systems 
  • Proactive Water Management: Unlike traditional waterproofing methods that simply act as a barrier, cavity drain systems actively collect and remove water before it can cause damage. 
  • Long-Term Solution: These systems are built to last, offering a durable and reliable solution for long-term basement dryness. 
  • Adaptability: Cavity drain systems can be installed in various basements, regardless of the foundation type (concrete, block, etc.). 
  • Reduced Maintenance: Once installed, these systems require minimal maintenance, needing only periodic inspection and cleaning of the sump pump. 
  • Improved Basement Environment: By eliminating moisture, cavity drain systems help prevent mold growth and create a healthier, more comfortable basement space. 
Investing in a Dry Basement 

Basement waterproofing with a cavity drain system is a wise investment that protects your home’s structural integrity and promotes a healthier living environment. By actively managing water intrusion, these systems offer peace of mind and safeguard your basement for years to come. If you’re facing basement moisture problems, consider consulting a foundation waterproofing professional to discuss the suitability of a cavity drain system for your specific needs. 

Basement waterproofing London 

Basement waterproofing London: Any structure below ground level is exposed to water pressure from all sides – and left untreated, this can cause surface dampness on walls and floors as well as potential flooding. Fortunately, there are many ways to prevent water ingress and protect your property from damp and other damage. The most effective way is to waterproof your basement or cellar at the time of construction. This is a relatively simple process that can be carried out by any damp proofing company that follows British Standard Building Regulations. 

A basement that is not properly waterproofed can become a damp, insecure area that is difficult to use. It can also be the source of black mould that not only looks unsightly but can cause health problems if inhaled. This is because black mould spores are known to cause asthma and other respiratory conditions in some people. 

The best option is to get a basement tanking London system in place during the building process, as this is an in-situ solution that is much more cost effective than retrofitting it to an existing property. The system involves installing internal membranes and a system of drainage channels and pumps, which manages any water ingress into the basement and diverts it away from living areas. This is often referred to as a CDM or Cavity Drain Membrane system. 

Final Words 

Most homeowners understand the importance of waterproofing their basement. They know that dampness can damage their valuables and cause a multitude of health problems. But they might not realise the impact that it can have on their home’s value. Homes that have been damaged by water ingress tend to sell for 25% less than those that are dry. 

This is because damp leads to mould and mildew that not only makes your property unsightly but also dangerous for your health. Mould and mildew spores can be inhaled and can cause respiratory problems. It is also hard on masonry and is difficult to clean. So, if you’ve got any signs of dampness or flooding, it is essential that you call in the experts to get it fixed as soon as possible. 

There are various methods of basement waterproofing, but the most popular is called tanking. This is done from the outside of the property and involves a membrane that wraps around the walls before concrete is poured, creating a sort of water-tight ‘tank’. This method is very effective but is more suitable for new constructions and cannot be used in older buildings. 

Another method of basement waterproofing is a pump-out system. These are more suitable for existing properties and involve a series of drains that are connected to a pump to remove the excess water. This method is more cost-effective than tanking, but it is not as effective. Lastly, there are injection systems that can be used to fix cracks and leaks. These can include epoxy crack injections and hydrophilic polyurethane injections. 

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CSMAN LTD0 commentBasement Construction, Construction, Design and Build, Foundations, Structural Engineering, sub structures, Underpinning
April 19, 2024

Basement Construction London – What You Need to Know 

Basement Construction London: Adding extra living space to your home can be a great way to increase its value and make it more appealing to potential buyers. But, with space at a premium in London, it’s important to consider all of your options before you start construction. 

Many people in London choose to build basements in their homes, which are useful for a wide range of purposes. 

Underpinning basement construction 

Underpinning basement construction: In many homes today it is common to find a basement that has been designed, either during construction or at a later point by the owners, to function as a fully functional addition to the home. In some cases, the basement is used as a recreation room, while in others it may contain a bedroom or two (especially for teenagers), a bathroom, a kitchenette and one or more closets. 

The most important factor in determining whether your basement requires underpinning is a structural inspection. If you notice cracks in the foundation walls that are wider than a quarter inch, diagonal cracks, or movement of the building from its original position, then it is time to call in an expert. In most cases, underpinning will be necessary to correct faulty or unstable foundations. 

This process involves digging out sections of the existing foundations and filling them with concrete, or using piles driven into the ground to transfer load to deeper supporting soil. It is a highly specialist operation and should only be undertaken by an experienced contractor. 

Another benefit of underpinning is that it creates more headroom, making it possible to install better lighting fixtures. This in turn allows more natural light into the basement. In addition, homeowners are able to access the mechanics of their basement such as plumbing and insulation works, giving them the opportunity to repair any problems. 

Garden Basement Construction 

Creating extra space in your home can be a challenging task. But with the right basement construction contractor, your project can become a reality. Look for contractors that are reputable and have experience in the industry. You should also choose a company that offers competitive pricing. They should provide clear, detailed estimates and timelines to complete your project. Additionally, they should be willing to answer any questions you may have. 

The cost of Garden Basement Construction depends on the size and depth of the basement. To minimize costs, opt for a simple design and avoid constructing basements that will require extensive excavation work. It is also important to select the correct materials for your project. For example, choosing vinyl or laminate flooring will help you save money compared to more expensive options. 

Before beginning the construction of your basement, consult with your local council about their policies on basement extensions. The stance of each council will vary, but some will allow you to build a basement without planning permission, while others may require that you submit a full application. 

If you need to submit a full application, make sure that you follow all of the guidelines carefully. Additionally, it is essential to service a Party Wall Notice before starting construction work to ensure that your neighbours are aware of the work being carried out. 

Basement Construction London 

When it comes to basement construction in London, there are a number of things that need to be considered. For instance, you’ll want to make sure that you hire a contractor with the right experience and expertise. You’ll also want to choose a contractor that has good references and a proven track record. Finally, you’ll want to make sure that the contractor is licensed and insured. 

One of the best ways to get a quote for your basement is to contact a specialist construction company. These companies have the knowledge and expertise to create a basement that is both functional and aesthetically pleasing. They can also help you make sure that your basement is in compliance with local codes and regulations. 

Another important step is to consult with a structural engineer. This expert will design the basement shell and core. They will take into account all the survey information available and your project requirements. They will also create a detailed schedule and plan for the construction process. This will ensure that your basement is built to the highest standards. 

Finally, it’s a good idea to consult with your neighbours before starting any basement excavations. This will prevent them from being surprised by diggers and jackhammers on their doorstep. It’s also a good idea to warn them that the work may cause some noise and disruption, and to explain how they can mitigate this. 

Until recently, London’s boroughs had little in the way of regulatory guidance to shape and control residential basement construction. Some had a specific policy in place, but most did not. The result was a wave of excavations. 

It was a trend that made headlines with stories of noise complaints, vibration, and even subsidence caused by retaining wall piling operations and basement excavation. But even as the stories rolled in, the excavations continued. 

There were even reports of entombed JCBs left underneath oligarch’s homes because it was too risky and expensive to lift them out (although we think there might be a metaphor in there somewhere). The media seemed to get in on the action, publishing articles like How to pull off a stunning three-storey basement extension or drooling over Gordon Ramsay’s PS7m renovation. 

But there were also plenty of people who were irked by the disruption and expense. Some complained about their ‘selfish’ neighbours who were digging down below their properties while they worked, causing them to be constantly disturbed by noise and dust. Others blamed the basement works for their own structural problems, such as a subsidence claim by one celebrity. 

But the fact is, there are ways to minimise the impact on your neighbours and still get those amazing extra rooms you want. The key is to do your homework and talk to your neighbours before you start work, as well as to understand how much the addition will add to your property in terms of additional square metres. 

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CSMAN LTD0 commentBasement Construction, Basement Construction Under Existing House London, Construction, Construction Management, Design and Build, Foundations, Piled Foundations, Structural Engineering, sub structures, Superstructures, Underpinning
August 25, 2023

Alternative segment lift for HS2’s Colne Valley Viaduct minimises local disruption

Construction of High Speed 2’s (HS2’s) 3.4km long Colne Valley Viaduct has reached a major milestone with a key 40m long span lifted into place over a local road during a three week closure of the route.

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CSMAN LTD0 commentCase Studies, Civil Engineering, Construction, Construction Management, Design and Build, Foundations, Industrial, Piled Foundations, Steel Frames, Structural Engineering, sub structures, Superstructures
August 25, 2023

Marathon’ bridge build completed on HS2

Contractors on HS2 have completed a ‘marathon’ bridge build at Streethay near Lichfield involving 18 specialist construction companies.

 

 

Work involved excavating 14,000 tonnes of earth, building a 140 metre retaining wall and moving a 2,600 tonne bridge deck 130 metres into place under the South Staffordshire freight railway.

The work was carried out during a 10 week blockade. It was completed by HS2’s civils contractor in the West Midlands, Balfour Beatty VINCI, and designers Mott MacDonald as part of a Design Joint Venture with SYSTRA (MMSDJV), together with teams from 18 specialist supply chain companies.

At the end of July, the 2,600 tonne bridge deck, which had been cast on land adjacent to the railway was moved 130 metres into position using self-propelled modular transporters.

Since then, each side of the bridge was backfilled, the rail tracks were reinstated, with the railway line was successfully handed back to Network Rail last week and now reopened.

The 25 metres long and 18 metres wide Streethay overbridge sits within HS2’s Streethay cutting and will enable HS2 trains to travel under the existing railway between Birmingham and Crewe.

Through design development, Mott MacDonald engineers were able to reduce the total length of wall structures for the railway at Streethay from 1.6 kilometres to 420 metres, meaning 80% less concrete is needed – saving around 420,000 tonnes of carbon, supporting HS2’s ambition to cut carbon on the project.

The Streethay bridge sits on top of the larger 420 metre long retaining wall structure which will have two additional bridges crossing it – the south bound A38 slip road bridge, and the Rykneld Bridge which carries the A38 north bound slip road and the A38 north and south bound carriageway.

At its peak, over 150 people worked on the complex construction operation, with teams from 18 specialist companies, delivering design, surveys, piling works, bridge build, concrete pouring, crane operations, reinforcements, modular transportation, track and systems removal and reinstatement.

The work was delivered in parallel to the construction of the nearby Fulfen Wood bridge, which involved moving a giant 6,200 tonne single span structure under the West Coast Main Line – the UK’s heaviest drive to install an intersection bridge.

David Millar, Rail Interface Manager at Balfour Beatty VINCI said: “The successful delivery of this complex and challenging piece of engineering near Lichfield is another proud moment for Balfour Beatty VINCI on the HS2 project.

“It’s only been possible thanks to the skill, dedication and support shown by the project team over the past few years, including our supply chain. Together, we’ve had to work around existing transport infrastructure, including the South Staffordshire freight railway and the A38, making this achievement even more rewarding.”

Prior to the railway blockade, retaining walls were installed on either side of the railway, enabling the areas to be excavated. The bridge deck was constructed on land adjacent to the existing railway, 130 metres from its final position.

Once the railway was closed to freight trains, the track and embankment were removed. Bachy Soletanche Balfour Beatty Ground Engineering joint venture then installed an additional 76 secant piles measuring 1.3 metres diameter and 30 metres deep, linking to the piles they installed prior to the blockade, to create two retaining walls which act as the walls for the bridge.

A concrete capping beam was installed over the retaining walls, then the bridge was moved into place using self-propelled modular transporters with 344 wheels. Concrete was poured to attach the deck to the capping beam, the embankment was back filled using 2,500 tonnes of structural backfill, on either side of the bridge, before the railway line was reinstated.

The 18 companies which delivered the project were:

J. Murphy & Sons constructed the bridge deck and the concrete elements during the blockade
Bachy Soletanche Balfour Beatty Ground Engineering JV (SB3) undertook all piling works, both before and during the blockade
The bridge parapets were made by Explore precast
Podtrak and RSS Infrastructure delivered rail systems work
Balfour Beatty VINCI delivered earthworks
Pile break-down was by Pile Breaking Systems UK Ltd
Trackway supplied by TPA
Jacking the structure and modular transportation by Mammoet UK
Survey works track monitoring by Aecom
Crane supply by King Lifting supported by BBV lifting teams
Concrete provided by CEMEX
Reinforcement by ROM – specialist reinforcement manufacturers
Temporary works by RMD
Permanent works design by Design JV (Mott Macdonald and Systra)
Temporary works design by Taylor Woodrow

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CSMAN LTD0 commentCase Studies, Civil Engineering, Concrete Frames, Construction, Construction Management, Design and Build, Factory, Foundations, Industrial, Piled Foundations, Planning Applications, Steel Frames, Structural Engineering, sub structures, Superstructures
August 25, 2023

Innovation Showcase | Track-free travelling formwork drives pace of HS2 green tunnel work

Innovative moving formwork is helping to speed construction of High Speed 2’s Copthall Tunnel in north west London.

Copthall Tunnel is one of five green tunnels being built along Phase 1 of High Speed 2 (HS2) between London and Birmingham.

Situated between HS2’s Northolt Tunnel and the Colne Valley Viaduct, the 880m long reinforced concrete Copthall Tunnel will blend into
its natural surroundings, covered with trees and plants once construction is complete.

The project is being delivered by Skanska Costain Strabag Joint Venture, with Kilnbridge appointed to complete the reinforced concrete works. Making the tunnel a concrete reality has been possible with custom formwork travellers engineered by Peri’s specialist infrastructure team.

As the travellers were expected to be in use over an 18 month period, the main drivers influencing their design were durability, productivity and sustainability.

To support the specified construction sequence, Peri’s engineers designed two carriages which enabled the site team to cast the walls and roof slab simultaneously, ultimately accelerating the programme. These carriages comprised four units in total, two for the wall and two for the roof.

The carriages are designed to reduce material, manual labour and craneage as the main operations such as striking, positioning and travelling are completed hydraulically.

The wall forms are built from special modular steel panels. Each set is designed to build 20m long and 7.5m high walls.

The panels are suspended from a carriage which is designed using off-the-shelf components from Peri’s Variokit range, with some specially fabricated connection parts. Variokit rails provided additional support for the formwork, reducing through ties to less than half the quantity required in a traditional panel system.

“We’ve been able to save around five days per wall in comparison to traditional formwork systems, as we can complete installation and prepare the system for concreting in one day,” says Kilnbridge project manager Teresa Martin.

The internal and external formwork on the wall carriages raise, lower and retract hydraulically, eliminating crane use and reducing labour requirements and cycle time by over 80%.

The roof carriage is built from a mix of special and standard components. In addition to fully supporting the rebar and concrete load, it features hydraulic cylinders which enable the traveller to be lowered, collapsed, pushed under the carriage in front and repositioned to allow rebar fixing and pouring operations to be concurrent. 

Peri senior sales engineer Dan Biggs says: “Special steel formwork was ideal for this project as the forms can be reused up to 30 times, so there is an obvious material saving advantage in addition to time savings, as panels do not need refacing, unlike a
plywood faced system.”

Following on from the installation of the roof traveller, the next steps will be progressing the tunnel so all three elements – base slab, tunnel walls and roof slab progress concurrently without conflicting. Tunnel construction is expected to be completed by February 2025. 

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CSMAN LTD0 commentCivil Engineering, Concrete Frames, Construction, Construction Management, Design and Build, Factory, Foundations, Industrial, Main, Piled Foundations, Steel Frames, Structural Engineering, sub structures, Super Structures, Superstuctures, Tunnel
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