Process for concreting reinforced vaults or ceilings in tunnel construction

摘要

A bottom side of the formwork is spatially separated if required from a top side by spacers and is covered with the reinforcing material. This covered formwork is brought into such a position with the top side that it forms a complete, internally-reinforced formwork, or a part of the formwork to which side parts are connected. The enclosed space is then filled with a hardening material such as concrete. The reinforcing is bent at a distance from the bottom side, and the trellis work is connectively supported on the bottom side.