Patent ID: 11905834
Assignee: OCEAN UNIVERSITY OF CHINA
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 5:
6. A shield sealing method, wherein the shield sealing method uses a shield sealing device, as claimed in claim 1, and the shield sealing method comprises:
enabling the control unit to be at an initial position when the cutter head is located in the elastic inner ring;
enabling the plurality of the control units to extrude the elastic inner ring to a first state when a front shield of the shield tunneling machine is located in the elastic inner ring;
enabling the control units to extrude the elastic inner ring to a second state when a middle shield of the shield tunneling machine is located in the elastic inner ring; and
enabling the control units to extrude the elastic inner ring to a third state when a rear shield of the shield tunneling machine is located in the elastic inner ring.