Apparatus for constructing galleries or tunnels by shield driving

摘要

The invention relates to an apparatus for constructing galleries or tunnels by shield driving with a shield (21). In order to permit fully continuous excavation, spirally arranged spiral cutters (19) or conveyor worms (50) are arranged on the supporting breast (39, 52) of the bucket wheel (10). In addition, conveyor shafts (12) likewise of spiral configuration are provided in the bucket wheel (10).