Description
Located in the Czech capital, the tunnel is part of 8 km of infrastructure to relocate traffic underground. A series of large tunnels make up the complex network of ventilation ducts. Amongst them the SO 05 stands out as the one with the largest cross section in the Czech Republic.
ULMA Solution
With a single product, ULMA's technical service provided solutions to the various configurations of this project.
The construction of the SO 05 tunnel was done with two 6.5 m long form carriers, one for steel reinforcement works and the other for the formwork. Both had large working platforms for material storage and safe working at height.
Tunnel dimensions:
- Length: 120 m
- Width: 17.5 m
- Height: 14 m
ULMA's solution suited the travel of form carriers while, at the same time, works at the slab formwork in Tunnel SO 04 were carried out.
Tunnel SO 04: two consecutive tunnels with different sections and vault lengths, in addition to the bottom and side walls, had to be built. This was all done with formwork carriers with structures pre-assembled in warehouse, which eased the erection and saved valuable working time.
For the STT tunnel, the one with the highest traffic density, the walls of the ventilation ducts beneath the floor were built with form carriers. Their simple and easy handling was increased by the use of pre-assembled formwork units. ENKOFLEX was used as slab formwork.
A project of this scale required ULMA to offer solutions and advice to the customer especially for intersections of tunnels with different cross sections and for the form carrier travel in areas not yet built. The versatility of the system generated a complete success.
