A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT PILE
PROBLEM TO BE SOLVED: To obtain a ground improvement pile having further stable bearing capacity.SOLUTION: In a ground improvement pile 100 having a solidified improvement body 10 arranged in a drilling hole H which is vertical to the ground G, and a core material 20 embedded into the solidified improvement body 10, the core material 20 comprises: bar steel 24 which extends along an axial core of the solidified improvement body 10; a plurality of first reinforcements 21 which are wound around the bar steel 24 so as to hang out toward one direction (X-direction) which intersects with an extension direction of the bar steel 24, and in which points which line-contact with a part of a peripheral face of the bar steel 24 are welded; and a plurality of second reinforcements 22 which intersect with the extension direction of the bar steel 24, are wound around the surroundings of the bar steel 24 so as to hang out toward the other direction (Y-direction) which intersects with one direction, and welded to at least a part of the peripheral face of the bar steel 24. The first reinforcement 21 and the second reinforcements 22 are alternately arranged in the extension direction of the bar steel 24.
【課題】より安定した支持力を有する地盤改良杭を実現する。【解決手段】地盤Ｇに鉛直な向きの掘削孔Ｈ内に設けられた固化改良体１０と、固化改良体１０中に埋め込まれた芯材２０と、を有する地盤改良杭１００において、その芯材２０は、固化改良体１０の軸心に沿って延在する条鋼２４と、条鋼２４の延在方向と交差する一の方向（Ｘ軸方向）に張り出すように条鋼２４の周囲に巻き付けられ、条鋼２４の周面の一部に線接触した箇所が溶接されている複数の第１鉄筋２１と、条鋼２４の延在方向と交差するとともに一の方向と交差する他の方向（Ｙ軸方向）に張り出すように条鋼２４の周囲に巻き付けられ、条鋼２４の周面の少なくとも一部に溶接されている複数の第２鉄筋２２と、を備えており、それら第１鉄筋２１と第２鉄筋２２が条鋼２４の延在方向に交互に配設されているようにした。【選択図】図１
GROUND IMPROVEMENT PILE
PROBLEM TO BE SOLVED: To obtain a ground improvement pile having further stable bearing capacity.SOLUTION: In a ground improvement pile 100 having a solidified improvement body 10 arranged in a drilling hole H which is vertical to the ground G, and a core material 20 embedded into the solidified improvement body 10, the core material 20 comprises: bar steel 24 which extends along an axial core of the solidified improvement body 10; a plurality of first reinforcements 21 which are wound around the bar steel 24 so as to hang out toward one direction (X-direction) which intersects with an extension direction of the bar steel 24, and in which points which line-contact with a part of a peripheral face of the bar steel 24 are welded; and a plurality of second reinforcements 22 which intersect with the extension direction of the bar steel 24, are wound around the surroundings of the bar steel 24 so as to hang out toward the other direction (Y-direction) which intersects with one direction, and welded to at least a part of the peripheral face of the bar steel 24. The first reinforcement 21 and the second reinforcements 22 are alternately arranged in the extension direction of the bar steel 24.
【課題】より安定した支持力を有する地盤改良杭を実現する。【解決手段】地盤Ｇに鉛直な向きの掘削孔Ｈ内に設けられた固化改良体１０と、固化改良体１０中に埋め込まれた芯材２０と、を有する地盤改良杭１００において、その芯材２０は、固化改良体１０の軸心に沿って延在する条鋼２４と、条鋼２４の延在方向と交差する一の方向（Ｘ軸方向）に張り出すように条鋼２４の周囲に巻き付けられ、条鋼２４の周面の一部に線接触した箇所が溶接されている複数の第１鉄筋２１と、条鋼２４の延在方向と交差するとともに一の方向と交差する他の方向（Ｙ軸方向）に張り出すように条鋼２４の周囲に巻き付けられ、条鋼２４の周面の少なくとも一部に溶接されている複数の第２鉄筋２２と、を備えており、それら第１鉄筋２１と第２鉄筋２２が条鋼２４の延在方向に交互に配設されているようにした。【選択図】図１
GROUND IMPROVEMENT PILE
地盤改良杭
SUZUKI HIROYUKI (author) / TOMITA NAOKI (author) / NISHIKAWA KOJI (author) / FUJIWARA TORASHIRO (author) / OTSUKA TAKAHITO (author) / KAWANAKAJIMA HIROYUKI (author)
2016-01-14
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2020
| European Patent Office | 2021