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A platform for research: civil engineering, architecture and urbanism
STEEL PIPE PILE AND PRODUCTION METHOD OF STEEL PIPE PILE
To provide a steel pipe pile capable of contributing to improvement of peripheral surface friction and preventing it from being upwardly lifted, and a production method thereof capable of reducing difficulty in processing by allowing twist processing upon production.SOLUTION: A steel pipe pile comprises: a steel pipe part 2 driven into the ground G; and spiral blade parts 3 arranged on an outer peripheral surface 2a of the steel pipe part 2 and inclined relative to a pipe shaft direction X, wherein the blade parts 3 with three or more blades are continuously or intermittently provided along the pipe shaft direction X, and the blade parts 3 are arranged such that projected parts of the blade parts 3 adjacent to each other in a peripheral direction in a plan view from the pipe shaft direction X are superposed without any clearance.SELECTED DRAWING: Figure 2
【課題】周面摩擦力の向上に寄与するほか、上方への持ち上がりを防止でき、しかも製造時のねじれ加工を可能とすることで加工難度を低下することができる。【解決手段】地盤Ｇ内に打ち込まれる鋼管部２と、鋼管部２の外周面２ａに設けられ、管軸方向Ｘに対して傾斜する螺旋状の羽根部３と、を備え、３枚以上の羽根部３が管軸方向Ｘに沿って連続的または断続的に設けられ、羽根部３は、管軸方向Ｘから見た平面視において周方向に隣接する羽根部３の投影部同士が隙間なく重なって配置されている鋼管杭および鋼管杭の製造方法を提供する。【選択図】図２
STEEL PIPE PILE AND PRODUCTION METHOD OF STEEL PIPE PILE
To provide a steel pipe pile capable of contributing to improvement of peripheral surface friction and preventing it from being upwardly lifted, and a production method thereof capable of reducing difficulty in processing by allowing twist processing upon production.SOLUTION: A steel pipe pile comprises: a steel pipe part 2 driven into the ground G; and spiral blade parts 3 arranged on an outer peripheral surface 2a of the steel pipe part 2 and inclined relative to a pipe shaft direction X, wherein the blade parts 3 with three or more blades are continuously or intermittently provided along the pipe shaft direction X, and the blade parts 3 are arranged such that projected parts of the blade parts 3 adjacent to each other in a peripheral direction in a plan view from the pipe shaft direction X are superposed without any clearance.SELECTED DRAWING: Figure 2
【課題】周面摩擦力の向上に寄与するほか、上方への持ち上がりを防止でき、しかも製造時のねじれ加工を可能とすることで加工難度を低下することができる。【解決手段】地盤Ｇ内に打ち込まれる鋼管部２と、鋼管部２の外周面２ａに設けられ、管軸方向Ｘに対して傾斜する螺旋状の羽根部３と、を備え、３枚以上の羽根部３が管軸方向Ｘに沿って連続的または断続的に設けられ、羽根部３は、管軸方向Ｘから見た平面視において周方向に隣接する羽根部３の投影部同士が隙間なく重なって配置されている鋼管杭および鋼管杭の製造方法を提供する。【選択図】図２
STEEL PIPE PILE AND PRODUCTION METHOD OF STEEL PIPE PILE
鋼管杭および鋼管杭の製造方法
OMAE NORIMORI (author) / AGATA ATSUSHI (author)
2024-07-08
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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