Title:
EXECUTION METHOD OF UNDERGROUND STRUCTURE AND INTERMEDIATE PUSHING JACK USED THEREFOR
Document Type and Number:
Japanese Patent JP2019100005
Kind Code:
A
Abstract:
To provide an execution method of an underground structure and an intermediate pushing jack used therefor capable of dispersing a thrust force and propelling a box-shaped roof.SOLUTION: An execution method of underground structure according to this invention includes steps of: arranging each of a plurality of box-shaped roofs made of steel pipe of box-shaped tubular body having rectangular cross section so as to coincidence with an outer edge of a concrete box body; forming joint flanges for bolt connection at respective ends of the plurality of box-shaped roofs which are used to press fitting unit tubular bodies one by one; joining the joint flanges with each other in the length direction by fastening them with bolts and nuts, embedding them in advance to push to cause them to penetrate between the start shaft and the reach shaft which are the entire length of the cross section; and installing a concrete box at one end, pushing out the box-shaped roof, and propelling the concrete box, and replacing and setting the box-shaped roof and the concrete box. One of the plurality of unit tubular bodies constituting the box-shaped roof is specified as a tubular body of an intermediate jack tubular body which can be extended by a jack and in the case of the box-shaped roof, the intermediate jack tubular body capable of incorporating the jack is disposed in the middle one of the box-shaped roofs.SELECTED DRAWING: Figure 1
Inventors:
UEMURA MAKOTO
UEMURA KENJIRO
NAKAMURA TOMOSUKE
OSADA AKIRA
UEMURA KENJIRO
NAKAMURA TOMOSUKE
OSADA AKIRA
Application Number:
JP2017228846A
Publication Date:
June 24, 2019
Filing Date:
November 29, 2017
Export Citation:
Assignee:
UEMURA MAKOTO
UEMURA KENJIRO
UEMURA KENJIRO
International Classes:
E21D9/04; E21D9/06
Attorney, Agent or Firm:
Tsukasa Kubo
Mariko Ozeki
Mariko Ozeki