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ROTARY PENETRATION STEEL PIPE PILE WITH TIP BLADE
To provide a rotary penetration steel pipe pile with a tip blade which suppresses the influence of reaction acting on a wing part during rotary penetration, and prevents generation of damage during the rotary penetration.SOLUTION: A rotary penetration steel pipe pile 10 with a tip blade is composed of a cast member 20 welded and fixed to a tip 12 of a steel pipe body 11, wherein the cast member 20 has a cylinder part 21 having a diameter larger than the diameter of the steel pipe body 11 and a connection part 30 connected to the tip 12 of the steel pipe body 11 formed integrally with each other, the diameter of the connection part 30 is expanded downward from the diameter of the steel pipe body 11 to the diameter of the cylinder part 21, and the connection part 30 has a wing part 40 having a diameter 1.5 to 6 times the diameter of the cylinder part 21 in the vicinity of the tip of the cast member 20.SELECTED DRAWING: Figure 1
【課題】回転貫入時に翼部に作用する反力の影響を抑制して、回転貫入時の破損を発生しにくくした先端翼付回転貫入鋼管杭を提供する。【解決手段】鋼管本体１１の先端１２に溶接固定される鋳造部材２０よりなる先端翼付回転貫入鋼管杭１０であって、鋳造部材２０は鋼管本体１１の直径よりも大径の筒部２１と鋼管本体１１の先端１２に接続される接続部３０とが一体に形成され、接続部３０は鋼管本体１１の直径から筒部２１の直径にまで下方に向かって拡径されてなり、鋳造部材２０の先端近傍に筒部２１の直径に対して１．５ないし６倍の直径を有する翼部４０とを備える。【選択図】図１
ROTARY PENETRATION STEEL PIPE PILE WITH TIP BLADE
To provide a rotary penetration steel pipe pile with a tip blade which suppresses the influence of reaction acting on a wing part during rotary penetration, and prevents generation of damage during the rotary penetration.SOLUTION: A rotary penetration steel pipe pile 10 with a tip blade is composed of a cast member 20 welded and fixed to a tip 12 of a steel pipe body 11, wherein the cast member 20 has a cylinder part 21 having a diameter larger than the diameter of the steel pipe body 11 and a connection part 30 connected to the tip 12 of the steel pipe body 11 formed integrally with each other, the diameter of the connection part 30 is expanded downward from the diameter of the steel pipe body 11 to the diameter of the cylinder part 21, and the connection part 30 has a wing part 40 having a diameter 1.5 to 6 times the diameter of the cylinder part 21 in the vicinity of the tip of the cast member 20.SELECTED DRAWING: Figure 1
【課題】回転貫入時に翼部に作用する反力の影響を抑制して、回転貫入時の破損を発生しにくくした先端翼付回転貫入鋼管杭を提供する。【解決手段】鋼管本体１１の先端１２に溶接固定される鋳造部材２０よりなる先端翼付回転貫入鋼管杭１０であって、鋳造部材２０は鋼管本体１１の直径よりも大径の筒部２１と鋼管本体１１の先端１２に接続される接続部３０とが一体に形成され、接続部３０は鋼管本体１１の直径から筒部２１の直径にまで下方に向かって拡径されてなり、鋳造部材２０の先端近傍に筒部２１の直径に対して１．５ないし６倍の直径を有する翼部４０とを備える。【選択図】図１
ROTARY PENETRATION STEEL PIPE PILE WITH TIP BLADE
先端翼付回転貫入鋼管杭
YAMASHITA KOJI (author)
2022-12-26
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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