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A platform for research: civil engineering, architecture and urbanism
ROTARY PILE, CONSTRUCTION TOOL FOR ROTARY PILE, AND CONSTRUCTION METHOD OF ROTARY PILE
To provide a rotary pile allowing drilling blades to perform anchor effect sufficiently and member cost of the rotary pile to be reduced.SOLUTION: A rotary pile 1 is provided with a steel pipe body 2 and a rotating body 3 arranged at a tip of the steel pipe body 2 in a drilling direction and drilling the ground through rotating. The rotating body 3 made of a steel pipe with thickness thicker than that of the steel pipe body 2 is provided with: an inserting part 31 in a cylindrical shape inserted to the inside of the steel pipe body 2; a drilling part 33 arranged at a tip of the inserting part 31 in the drilling direction and provided with drilling blades 38 on the outer periphery thereof, and a rotational shear transmission part 35 arranged on the inserting part 31 and transmitting torque to rotate the drilling part 33 to the drilling part 33. The steel pipe body 2 and the rotating body 3 are connected.SELECTED DRAWING: Figure 1
【課題】掘削羽根のアンカー効果を十分に機能させることができ、かつ回転杭の部材コストを低減することのできる回転杭を提供すること。【解決手段】鋼管本体２と、鋼管本体２の掘削方向先端に設けられ、回転することにより地盤を掘削する回転体３とを備えた回転杭１であって、回転体３は、鋼管本体２よりも肉厚の鋼管から構成され、鋼管本体２の内部に挿入される筒状の内挿部３１と、内挿部３１の掘削方向先端に設けられ、外周に掘削羽根３８が設けられた掘削部３３と、内挿部３１に設けられ、掘削部３３を回転させるトルクを掘削部３３に伝達する回転せん断力伝達部３５と、を備え、鋼管本体２および回転体３が結合される。【選択図】図１
ROTARY PILE, CONSTRUCTION TOOL FOR ROTARY PILE, AND CONSTRUCTION METHOD OF ROTARY PILE
To provide a rotary pile allowing drilling blades to perform anchor effect sufficiently and member cost of the rotary pile to be reduced.SOLUTION: A rotary pile 1 is provided with a steel pipe body 2 and a rotating body 3 arranged at a tip of the steel pipe body 2 in a drilling direction and drilling the ground through rotating. The rotating body 3 made of a steel pipe with thickness thicker than that of the steel pipe body 2 is provided with: an inserting part 31 in a cylindrical shape inserted to the inside of the steel pipe body 2; a drilling part 33 arranged at a tip of the inserting part 31 in the drilling direction and provided with drilling blades 38 on the outer periphery thereof, and a rotational shear transmission part 35 arranged on the inserting part 31 and transmitting torque to rotate the drilling part 33 to the drilling part 33. The steel pipe body 2 and the rotating body 3 are connected.SELECTED DRAWING: Figure 1
【課題】掘削羽根のアンカー効果を十分に機能させることができ、かつ回転杭の部材コストを低減することのできる回転杭を提供すること。【解決手段】鋼管本体２と、鋼管本体２の掘削方向先端に設けられ、回転することにより地盤を掘削する回転体３とを備えた回転杭１であって、回転体３は、鋼管本体２よりも肉厚の鋼管から構成され、鋼管本体２の内部に挿入される筒状の内挿部３１と、内挿部３１の掘削方向先端に設けられ、外周に掘削羽根３８が設けられた掘削部３３と、内挿部３１に設けられ、掘削部３３を回転させるトルクを掘削部３３に伝達する回転せん断力伝達部３５と、を備え、鋼管本体２および回転体３が結合される。【選択図】図１
ROTARY PILE, CONSTRUCTION TOOL FOR ROTARY PILE, AND CONSTRUCTION METHOD OF ROTARY PILE
回転杭、回転杭の施工治具、および回転杭の施工方法
MARUYAMA SAKAE (author) / WADA MASATOSHI (author) / IWAKI AKIMITSU (author) / TOKUOKA TAKATOSHI (author) / TAHARA SHINTARO (author)
2020-10-08
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2020
CONSTRUCTION JIG OF ROTARY PILE, AND CONSTRUCTION METHOD OF ROTARY PILE
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