The formwork had to be installed in their vertical position when they are connected with each other with the help of fitting metal bolts, the ends of which have the appropriate thread, also used nuts and washers. The installation of the bolts was made from below and from above, with a step by standing a little less than a meter along the length of the shield. In order to avoid the deformation of the finished formwork, in addition to the fitting bolts for fixation, wooden bars were also used, the location of which was determined at a distance of about one meter from each other. It was also necessary to concrete a belt with the installation of spacers, which, already when concreting due to the lack of need for them, were pulled out after.
