Title:
BEARING CAPACITY INCREASING METHOD, CONSTRUCTION METHOD OF SHEET PILE FOUNDATION, SHEET PILE FOUNDATION AND BRIDGE
Document Type and Number:
Japanese Patent JP2005213904
Kind Code:
A
Abstract:
To pull out a ground reinforcement effect by a sheet pile to the maximum after sufficiently raising the bottom contact pressure of a footing in a bridge applied to a rail-road and a roadway.
A bag-like expansion member 16 is put between an upper pressurized plate 14 and a lower pressurized plate 15, and a reaction force security device 13 connecting a grout injection pipe 6 to the expansion member 16 is installed on the lower side of the footing 3. When grout 7 is injected into the expansion member 16, the expansion member 16 is expanded to push the upper pressurized plate 14 and the lower pressurized plate 15 up and down. As a result, vertical stress generated on the bottom of the footing 3 is increased to increase a bearing capacity.
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Inventors:
NISHIOKA HIDETOSHI
KANDA MASAYUKI
MURATA OSAMU
SAKIMOTO JUNJI
HIRAO JUNICHI
TONO MITSUO
TANAKA KOICHI
KANDA MASAYUKI
MURATA OSAMU
SAKIMOTO JUNJI
HIRAO JUNICHI
TONO MITSUO
TANAKA KOICHI
Application Number:
JP2004023046A
Publication Date:
August 11, 2005
Filing Date:
January 30, 2004
Export Citation:
Assignee:
RAILWAY TECHNICAL RES INST
OHBAYASHI CORP
OHBAYASHI CORP
International Classes:
E02D27/34; E01D19/02; E01D22/00; E02D35/00; (IPC1-7): E02D27/34; E01D19/02; E01D22/00; E02D35/00
Attorney, Agent or Firm:
Shiroyuki Hori