What is the Tunnel Formwork System?

The Tunnel Formwork System is a steel formwork system that enables simultaneous pouring of wall and slab concrete, with sheet metal used for concrete-facing surfaces. It’s a highly efficient system that can be used for up to 500 concrete pours depending on usage conditions, minimizing formwork costs and maximizing worker safety through the use of scaffold systems. This system allows for daily concrete pours and is utilized in the production of monolithic structures like residential buildings, hospitals, prisons, and dormitories, enabling pouring of one floor every day or two, depending on the size of the structure.

Buildings constructed using the Tunnel Formwork System are economical, earthquake-resistant, and minimize manufacturing errors while significantly reducing the costs of fine construction workmanship.

Why Choose the Tunnel Formwork System?

It’s Economical…

• The system allows for up to 500 pours with a single set of forms in the same project.
• It adapts to similar new projects at low cost through the addition of new forms and repair of old ones.
• Significant labor cost savings can be achieved when carried out by a small team of highly skilled foremen, assistants, and laborers.
• The construction time is greatly accelerated compared to traditional methods, significantly reducing the finance costs of construction capital.
• At the end of its use, or when it is too worn, the forms still hold a sellable economic value.

It’s Fast and Safe…

• A formwork system where contractors can pour wall and slab concrete daily, enabling the production of one floor per day with a single set of forms.
• It allows pouring up to the openings required by the static project, easily working in openings ranging from 1.5 to 6.5 meters.
• Known as the safest system against earthquakes, proven again in the 1999 August Marmara earthquake, and also highly secure against severe winds and storms.
• When scaffold systems completing the formwork are fully implemented on-site, it results in highly successful outcomes in terms of job safety.
• The system is resistant to fire.

It’s Easy to Implement…

• A well-planned organization ensures the implementation of the assembly line system on-site.
• It offers ease in the application of electrical and sanitary installation works.
• It can be used in various building types like housing, hotels, dormitories, prisons, barracks, and any building where the repetition of casting reduces formwork costs.
• Minor damages can be repaired by welders.

It Ensures High Quality…

• It ensures the correct application of the project and its completion at the initiated quality.
• By pouring thinner curtain concrete in upper floors, it’s possible to build buildings up to 40 stories.
• As measurement errors are negligible during production, it facilitates the application of precast facade walls and ready-made panel interior walls.
• Very smooth concrete surfaces are obtained from the formwork surfaces, eliminating the need for post-concrete plastering, while other paper lining and painting processes are easily applied and carried out at minimum costs.

It’s Environmentally Friendly…

• The absence of wood use is known for its positive environmental contributions.
• Heating and ventilation expenses are lower compared to conventional buildings.