METHOD AND DEVICE FOR PROCESSING MORTAR AND CONCRETE IN TUNNEL AND TUBE CONSTRUCTION

摘要

Concrete is pumped through a delivery line (16) into an annular distribution line (30) which has branch lines (34) at circumferential distances apart. The branch lines (34) can be blocked individually by means of shut-off members (36). The other end of the distribution line (30) is attached to a concrete-discharge device (52). When the latter is actuated, the concrete located in the distribution line (30) is emptied over part of the delivery line (16) into a collecting container (82). The emptying operation can be started automatically before the concrete sets in the piping system. …IMAGE…