Title:
CONNECTION PART OF SEGMENT FOR TUNNEL AND UNIT FOR FORMING TUNNEL RING
Document Type and Number:
Japanese Patent JP3877391
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To connect easily and firmly a plurality of segments for tunnel which are adjacent to one another in the circumferential direction of a tunnel and to efficiently perform the construction work of a tunnel wall.
SOLUTION: Each of first and second segment bodies has an abutting surface 4 for connecting both the segments to each other on an end along the circumferential direction X of a tunnel, and an interior side dovetail groove M1 is formed in the end on the interior side of the surface 4 and an exterior side dovetail groove M2 is formed in the end on the exterior side of the surface 4. An exterior side connector R1 is provided in the groove M1 of the first segment body and an exterior side connector R2 is provided in an exterior side dovetail groove M2 of the second segment body. When the second segment body is pushed in, insertion of the groove M1 into the connector R2 is effected simultaneously with insertion of connector R2 into the groove M2.
Inventors:
Katsuhiko Mukai
Kazunori Tsujimoto
Toshiyuki Aoki
Kazunori Tsujimoto
Toshiyuki Aoki
Application Number:
JP25584697A
Publication Date:
February 07, 2007
Filing Date:
September 22, 1997
Export Citation:
Assignee:
Kubota Corporation
International Classes:
E21D11/04; E21D11/08; (IPC1-7): E21D11/08; E21D11/04
Domestic Patent References:
| JP11044192A | ||||
| JP6299796A | ||||
| JP3363053B2 | ||||
| JP3753480B2 |
Attorney, Agent or Firm:
Shuichiro Kitamura
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