Title:
STEEL SUPPORT AND STRUCTURE OF LINING CONCRETE
Document Type and Number:
Japanese Patent JP2015081425
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a steel support and a structure of lining concrete that can securely ensure cavity stability of an upper half part (arch part), and also can shorten the period of construction and reduce the cost of construction.SOLUTION: There are provided an upper steel support (steel support) 2 and a structure of lining concrete 3 provided at an arch part 12 (upper half part) of a tunnel 11 for preceding excavation of the arch part 12. The upper steel support 2 has an arch member 21 installed in a tunnel peripheral direction A and a wing rib member 22 formed at a lower end part of the arch member 21 integrally with the arm member 21 to constitute a wing rib 6. A lower end part 21a of the arch member 21 and the wing rib member 22 are provided outside a lower half part 13 of the tunnel 11, and the wing rib member 22 is united with the lining concrete 3.
Inventors:
YABE YUKIO
ONISHI MASARU
IMAZU MASAKI
SOYA MASAHIRO
FUKUDA TAKESHI
ONISHI MASARU
IMAZU MASAKI
SOYA MASAHIRO
FUKUDA TAKESHI
Application Number:
JP2013219011A
Publication Date:
April 27, 2015
Filing Date:
October 22, 2013
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
E21D11/00; E21D9/00; E21D11/40; E21D13/00
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Yoshifumi Saeki
Kenichi Kawabuchi
Tadashi Takahashi
Yoshifumi Saeki
Kenichi Kawabuchi
Previous Patent: SAMPLING DEVICE AND METHOD FOR UNCONSOLIDATED SAMPLE
Next Patent: SUPPORT LEG OF FREE ACCESS FLOOR PANEL
Next Patent: SUPPORT LEG OF FREE ACCESS FLOOR PANEL