Title:
CONSTRUCTION METHOD FOR TUNNEL SUPPORT
Document Type and Number:
WIPO Patent Application WO/2020/217481
Kind Code:
A1
Abstract:
Provided is a construction method for tunnel support that is provided along the inner walls of a tunnel. The method comprises: a frame structure disposing step (S125, S150) for disposing a frame structure (135) at a prescribed position; a base support forming step (S115, S120, S140, S145) for forming base support (110, 120) along the inner walls of a tunnel; and an extendible section forming step (S140, S155) for forming an extendible section (130) by spraying a concrete material onto the frame structure (135) disposed at the prescribed position. The prescribed position is located so that the frame structure (135) crosses the base support (110, 120) in the tunnel radial direction.
Inventors:
DATE KENSUKE (SG)
YOKOTA YASUHIRO (SG)
YOKOTA YASUHIRO (SG)
Application Number:
PCT/JP2019/018031
Publication Date:
October 29, 2020
Filing Date:
April 26, 2019
Export Citation:
Assignee:
KAJIMA CORP (JP)
International Classes:
E21D11/04
Foreign References:
| JP2018003361A | 2018-01-11 | |||
| JP2000303797A | 2000-10-31 | |||
| JPS5066432U | 1975-06-14 | |||
| JP2018155048A | 2018-10-04 | |||
| JP2005232958A | 2005-09-02 | |||
| JPS5261337A | 1977-05-20 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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