The case where it moves to the tunnel urgent curved line

摘要

PROBLEM TO BE SOLVED: To provide a method and a device for exchanging a tail of a shield machine capable of shifting from a tunnel straight part having a simple structure and allowing easy work to a sharp curve part.;SOLUTION: A first skin plate 2 is detachably provided in a rear end part of a tail 1 of a shield machine, a second skin plate 4 which is shorter than the first skin plate 2 is welded on the tail 1 on an inner side thereof at the time of shift, and the connection of the tail 1 and the first skin plate 2 is released and they are left as they are to restart by the second skin plate 4.;COPYRIGHT: (C)2001,JPO