Title:
METHOD AND DEVICE FOR MODIFYING ROLLING IN DOT SHIELD
Document Type and Number:
Japanese Patent JP2002061488
Kind Code:
A
Abstract:
To provide a method and device for modifying rolling in a DOT shield capable of reliably correcting rolling without being affected by the hardness of the ground of a tunnel or rotating a segment.
For modifying rolling in the DOT shield 5, a weight 57 is arranged at the eccentric location of the DOT shield 5. Angular moment in the circumferential direction of the DOT shield 5 is generated by the weight 57, and the entire rolling or part of it is offset by the angular moment.
Inventors:
UENO TOKIO
YASAKA HIROMITSU
YASAKA HIROMITSU
Application Number:
JP2000245041A
Publication Date:
February 28, 2002
Filing Date:
August 11, 2000
Export Citation:
Assignee:
MAEDA CONSTRUCTION
International Classes:
E21D9/093; E21D9/06; (IPC1-7): E21D9/06
Attorney, Agent or Firm:
Tsutomu Toyama (2 outside)