Apparatus for setting and removing tunnel casing rings

Abstract

An apparatus for moving casing rings of an interior casing in tunnels, shafts and the like structures is disclosed. The apparatus includes a tubular support bridge structure arranged interiorly with respect to the inner casing, and a longitudinally movable transport carriage with carriage support ring which concentrically surrounds the support bridge structure. The apparatus also includes a segment support ring which carries adjustment manipulator assemblies for a respective casing ring. The segment support ring can be inclined with respect to the carriage support ring. A first intermediate support ring is mounted between the carriage support ring and the segment support ring. The connection for this includes cross guide assemblies and two pairs of control piston-cylinder assemblies. The control piston-cylinder assemblies serve to actuate the first intermediate support ring. A second intermediate support ring is generally arranged between the first intermediate support ring and the segment support ring, and in the first intermediate support ring in such a way that it can be rotated. The segment support ring can be connected to a respective second intermediate support ring by way of a fixed point and two pendulum piston-cylinder assemblies, whereby the latter are spaced from one another and from the fixed point by an equal distance. The apparatus is of simple configuration and affords a simpler hydraulic assembly than hitherto known.