Tubbing-production equipment for tunnel-lining - uses fully-enclosed shell mould with two unions in bottom for concrete pumped from mixer

摘要

The shell mould (6) is enclosed on all sides, and has a pipe (5) containing a concrete pump (4) from the mixer (3) leading via a distributor (10) to two or more filler unions (11) in the mould bottom (7). There is also a mould cover (9) with a pressure-equalisation system (12). The mixer can be connected to the pump via a fibre-mixer (14) with metering unit (13) for the fibre. The unions can be at the lowermost points of the mould. ADVANTAGE - Fast and fully-mechanised production.