Title:
METHOD FOR CONSTRUCTING SUPPORTING AND METHOD FOR BORING TUNNEL
Document Type and Number:
Japanese Patent JP2014125822
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable a supporting to be constructed while avoiding use of spray concrete as much as possible after a subgrade is bored by a boring machine.SOLUTION: A method for constructing a supporting includes the steps of: spraying a spray mortar 70 onto a surface of a natural ground exposed on an inner wall of a drilling hole; assembling steel materials 72 in a circular ring-shape along the surface of the spray mortar 70; constructing an invert 74 on the inside of the spray mortar 70 at a lower side of the drilling hole; installing an inner form 76 in a circular ring-shape inside the spray mortar 70 with an interval from the spray mortar 70; and placing concrete 78 between the spray mortar 70 and the inner form 76.
Inventors:
TAKEDA MITSUO
KABUKI MASAHIRO
KABUKI MASAHIRO
Application Number:
JP2012284342A
Publication Date:
July 07, 2014
Filing Date:
December 27, 2012
Export Citation:
Assignee:
KABUKI CONSTRUCTION CO LTD
International Classes:
E21D11/10; E21D9/10
Domestic Patent References:
| JPS62236995A | 1987-10-17 | |||
| JP5138821B2 | 2013-02-06 | |||
| JP2007321490A | 2007-12-13 | |||
| JPS612597U | 1986-01-09 | |||
| JPH01223299A | 1989-09-06 | |||
| JP4934234B2 | 2012-05-16 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Yamamoto Kousuke
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Yamamoto Kousuke