A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL PIPE PILE AND CONSTRUCTION METHOD USING THE SAME
To provide a steel pipe pile capable of smoothly pressing out excavated soil without compressing it and preventing attachment of clods on an excavation blade, while avoiding slippage of the excavation blade.SOLUTION: A steel pipe pile 1 has a shaft part 21 made of a steel pipe, on an end part of which an excavation blade is arranged projecting downward. The steel pipe pile is driven into the ground by excavating the ground with the excavating blade while rotating the shaft part 21. The steel pipe pile is provided with a single one-side blade 25 as a first excavating blade, wherein the width of the one-side blade 25 is smaller than the outer diameter of the shaft part 21, and the center axis of the one-side blade 25 in a vertical direction is offset from the rotation center of the shaft part 21. The one-side blade 25 excavates the ground asymmetrically during one rotation of the shaft part 21 to push out the excavated soil produced through excavation to the side where no one-side blade 25 is arranged right below the shaft part 21.SELECTED DRAWING: Figure 1
【課題】掘削土を圧縮させずに円滑に押し出すことが可能であり、掘削刃への土塊の付着を防止することができ、掘削刃の滑りが生じない鋼管杭を提供する。【解決手段】鋼管からなる軸部２１の端部に下方へ突出する掘削刃が設けられ、軸部２１を回転させながら掘削刃で地盤を掘削することによって地中に貫入される鋼管杭１であって、第１掘削刃としての単一の片刃２５を備え、片刃２５の幅は、軸部２１の外径よりも小さく、片刃２５の垂直方向の中心軸は、軸部２１の回転中心から偏心しており、片刃２５は、軸部２１が１回転する間に、地盤を非対称に掘削し、掘削によって生じた掘削土を、軸部２１の直下における片刃２５が設けられていない側に押し出す。【選択図】図１
STEEL PIPE PILE AND CONSTRUCTION METHOD USING THE SAME
To provide a steel pipe pile capable of smoothly pressing out excavated soil without compressing it and preventing attachment of clods on an excavation blade, while avoiding slippage of the excavation blade.SOLUTION: A steel pipe pile 1 has a shaft part 21 made of a steel pipe, on an end part of which an excavation blade is arranged projecting downward. The steel pipe pile is driven into the ground by excavating the ground with the excavating blade while rotating the shaft part 21. The steel pipe pile is provided with a single one-side blade 25 as a first excavating blade, wherein the width of the one-side blade 25 is smaller than the outer diameter of the shaft part 21, and the center axis of the one-side blade 25 in a vertical direction is offset from the rotation center of the shaft part 21. The one-side blade 25 excavates the ground asymmetrically during one rotation of the shaft part 21 to push out the excavated soil produced through excavation to the side where no one-side blade 25 is arranged right below the shaft part 21.SELECTED DRAWING: Figure 1
【課題】掘削土を圧縮させずに円滑に押し出すことが可能であり、掘削刃への土塊の付着を防止することができ、掘削刃の滑りが生じない鋼管杭を提供する。【解決手段】鋼管からなる軸部２１の端部に下方へ突出する掘削刃が設けられ、軸部２１を回転させながら掘削刃で地盤を掘削することによって地中に貫入される鋼管杭１であって、第１掘削刃としての単一の片刃２５を備え、片刃２５の幅は、軸部２１の外径よりも小さく、片刃２５の垂直方向の中心軸は、軸部２１の回転中心から偏心しており、片刃２５は、軸部２１が１回転する間に、地盤を非対称に掘削し、掘削によって生じた掘削土を、軸部２１の直下における片刃２５が設けられていない側に押し出す。【選択図】図１
STEEL PIPE PILE AND CONSTRUCTION METHOD USING THE SAME
鋼管杭及びこれを用いた施工方法
TARU KEISUKE (author)
2024-11-27
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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