Travelling formwork for concrete forming of a tunnel

Abstract

A travelling formwork for concrete forming of a tunnel includes a trolley provided with a front pair of legs, a rear pair of legs and a supporting structure attached to the front and rear pair of legs, and a reconfigurable formwork assembly mounted on the supporting structure. The reconfigurable formwork assembly can be configured in a deployed position for concrete casting and in a folded position for its transportation. The length of each leg is variable so that the formwork assembly and the trolley can be lowered when the formwork assembly is in its folded configuration. The travelling formwork can travel through a tunnel having sections of reduced cross-sectional areas, without the need to disassemble the formwork trolley when it has to pass through tunnel sections of reduced cross-sectional area.

Dependencies are inferred from the claim text.