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Title:
SUPPORTING STEEL MATERIAL USED FOR CONSTRUCTING UNDERGROUND STRUCTURE
Document Type and Number:
Japanese Patent JP2015086509
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide supporting steel material used for constructing an underground structure that prevents displacement and deflection of the structure by giving an H-shaped steel material a property to stretch itself when the H-shaped steel material is used as a beam or another supporting material.SOLUTION: A box-shaped sheath pipe is slidably fitted into an H-shaped steel material, and then, a hydraulic jack is placed between the H-shaped steel material and the sheath pipe.

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JPS59126895SHIELD EXCAVATOR
JP2006328729UNDERGROUND JACKING DEVICE
Inventors:
UEMURA MAKOTO
UEMURA KENJIRO
ABE FUMITADA
YAMASHITA YASUHIKO
Application Number:
JP2013223033A
Publication Date:
May 07, 2015
Filing Date:
October 28, 2013
Export Citation:
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Assignee:
UEMURA MAKOTO
UEMURA KENJIRO
International Classes:
E21D9/06; E21D9/04
Domestic Patent References:
JPH0360975B21991-09-18
JPS5585197U1980-06-12
JPS297553B1
JPS6120121Y21986-06-17
Attorney, Agent or Firm:
Tsukasa Kubo



 
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