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A platform for research: civil engineering, architecture and urbanism
ROTARY PILE AND CONSTRUCTION METHOD FOR ROTARY PILE
To provide a rotary pile that can change the excavation ability depending on the strength of the ground for construction and improve transport efficiency.SOLUTION: A rotary pile 1 comprises: an excavation vane 4 that is made up of a twisted flat steel, at least a part of which has a twisted section 41 that is twisted axially in a longitudinal direction; and a steel pipe body 2 on which insertion holes 21 into which the excavation vane 4 is inserted are formed at the tip in the excavation direction. A twist axis AH of the twisted section 41 extends in the direction perpendicular to a material axis AV of the steel pipe body 2.SELECTED DRAWING: Figure 2
【課題】施工する地盤の強度に応じて、掘削能力を変更することができ、輸送効率を向上させることのできる回転杭を提供すること。【解決手段】回転杭１は、長手方向の軸回りに捩られた捩り部４１を少なくとも一部に有する捩り平鋼から構成される掘削羽根４と、掘削羽根が４挿通される挿通孔２１が掘削方向先端部に形成された鋼管本体２とを備え、捩り部４１の捩り軸ＡＨが、鋼管本体２の材軸ＡＶに直交する方向に延びる。【選択図】図２
ROTARY PILE AND CONSTRUCTION METHOD FOR ROTARY PILE
To provide a rotary pile that can change the excavation ability depending on the strength of the ground for construction and improve transport efficiency.SOLUTION: A rotary pile 1 comprises: an excavation vane 4 that is made up of a twisted flat steel, at least a part of which has a twisted section 41 that is twisted axially in a longitudinal direction; and a steel pipe body 2 on which insertion holes 21 into which the excavation vane 4 is inserted are formed at the tip in the excavation direction. A twist axis AH of the twisted section 41 extends in the direction perpendicular to a material axis AV of the steel pipe body 2.SELECTED DRAWING: Figure 2
【課題】施工する地盤の強度に応じて、掘削能力を変更することができ、輸送効率を向上させることのできる回転杭を提供すること。【解決手段】回転杭１は、長手方向の軸回りに捩られた捩り部４１を少なくとも一部に有する捩り平鋼から構成される掘削羽根４と、掘削羽根が４挿通される挿通孔２１が掘削方向先端部に形成された鋼管本体２とを備え、捩り部４１の捩り軸ＡＨが、鋼管本体２の材軸ＡＶに直交する方向に延びる。【選択図】図２
ROTARY PILE AND CONSTRUCTION METHOD FOR ROTARY PILE
回転杭および回転杭の施工方法
IWAKI AKIMITSU (author) / WADA MASATOSHI (author) / MARUYAMA SAKAE (author) / TOKUOKA TAKATOSHI (author) / TAHARA SHINTARO (author)
2020-10-08
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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