SHIELD MACHINE FOR UNDERGROUND CONNECTION

摘要

PROBLEM TO BE SOLVED: To provide a shield machine for underground connection capable of enlarging wrapping allowance with a receiving hood as much as possible when the machine is inserted in the receiving hood arranged underground. SOLUTION: The shield machine 1 for underground connection is put in the receiving hood 8 arranged underground for connection. In this connection system is provided with a cylindrical body 7 provided in the cutter head 2 cutting the heading and inserted in the receiving hood 8 at the connecting time, a fixed hood 9 provided in shield machine body 11 at the rear side of the cutter head 2 with a specified gap W from the cylindrical body 7, and a movable hood 13 slidably provided in the axial direction at the inner peripheral face of the fixed hood 9 to cover the gap from the cylindrical body 7 in advancing motion. COPYRIGHT: (C)2004,JPO