Press release - The Modular Self-supporting Formwork for Tunnels built by CM Lafer for R.T.I DONATI S.p.A.- N.V. BESIX S.A. has just completed the first casting on the east mouth of the CASACASTALDA tunnel, on the doubling of the SS 318 ANAS road which connects Perugia with Ancona.
The Formwork has a length of 12 m and, because it has an anchorage to the wall by tyloops, it allows use with shorter lengths compatible with a 1.5 m base element.
The wagon for the transport and handling of the formwork has beams with intermediate flanges to adapt to the structure to different transport requirements. Above, in the canopy area, there is a clear area for the possible passage of the 2-m diameter ventilation pipe. Lateral to this area runs the semiautomatic concrete distribution system.
This type of formwork was adapted for use on the different working faces of the two tunnels that R.T.I. DONATI S.p.A.- N.V. BESIX S.A. is building. The 1545-m-long Casacastalda tunnel is being tackled from the two portals and will have to overcome excavation zones in varicoloured clays that had created face stability problems during the construction of the parallel tube in 2004.
The 874 m Picchiarella tunnel will be excavated and lined with 4 working faces also takes advantage of the intermediate adit in the artificial section.
The formwork erection stages had started the week before the site visit organized by the Italian Tunnelling Society on March 18, 2022.
During the coming months of development of excavation activities on the various fronts, after the completion of the preparatory activities, CM Lafer will be at the disposal of the R.T.I. engineers to deal with the different requirements of the sections on which the Modular Self-supporting Formwork will have to go to work. This structure will be easily modified and adapted to different casting lengths with simple operations and the addition of a few special elements.
CM Lafer is a company with an in-house production structure for both carpentry and mechanical parts which means it can minimize the design/construction and installation time on site using its own highly qualified technicians.
CM Lafer is the right partner for all types of tunnel formwork as well as special equipment for road and rail infrastructure construction sites. If you need experience and cutting-edge solutions designed and manufactured completely in-house by a TUV-certified system then use CM Lafer http://www.cmlafer.it/. 26/22.
