EXISTING-QUAY-IMPROVED STRUCTURE AND IMPROVEMENT METHOD

Japanese Patent JP2022165458

A

To provide an existing-quay-improved structure with enhanced earthquake resistance, specifically, made capable of coping with the case with severe bending moment at the pier pile head, that is, the case with the superstructure shaking excessively, as well as, made applicable to the case requiring earth retaining reinforcement.SOLUTION: An existing-quay-improved structure 1 is obtained by improving an existing quay of a type in which a superstructure 5 is supported by support piles 3 driven into a submerged ground 2. The existing-quay-improved structure 1 comprises: a sheet pile wall 7 that is newly installed, under a water surface, separated a predetermined distance away toward a water-area side from directly under a water-area-side end of the superstructure 5, so as to protrude from a water bottom surface in a quay normal direction; a raising material 9 for raising a water bottom surface constructed on a land side of the sheet pile wall 7; a plurality of piles 11 driven into the water bottom surface on a water-area side of the sheet pile wall 7; and a pile head connection structure 13 which is integrally connected with pile heads of the plurality of piles 11, and installed so as to touch the water-area side of sheet pile wall 7 to transmit only horizontal force from sheet pile wall 7 to the piles 11, and further has an upper surface installed so as to be at the same level as that of a water bottom surface level of a water area where ships berth.SELECTED DRAWING: Figure 1

SHIOZAKI SADAO
OGAWA SATOSHI
UCHIDA KENICHI
EBIHARA TOSHIHIRO
SUZUKI TAKAO
TANAKA SACHITO

JP2021070781A

November 01, 2022

April 20, 2021

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JFE STEEL CORP
JFE ENG CORP

E02B3/06; E02D27/52

Toshihiko Ishikawa

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