A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a ground improvement auger for forming a stable columnar body with large friction between the columnar body and peripheral soil.SOLUTION: A ground improvement auger includes an auger shaft extending in a prescribed direction, a roughly conical head rotating integrally with the auger shaft and having a diameter that tapers in a direction away from a relay part, and a blade protruded from an outer periphery of the head. The blade has a pressing surface that consolidates a material on peripheral soil, when the auger shaft rotates. The auger shaft and the head define an inner space extending in the prescribed direction and guiding the material including excavated soil in the prescribed direction. The head has an opening on a side surface that communicates the inner space with outside.SELECTED DRAWING: Figure 1
【課題】周辺土との摩擦の大きい安定した柱状体を形成する地盤改良オーガーを提供する。【解決手段】地盤改良オーガーは、所定方向に延在するオーガー軸と、オーガー軸と一体的に回転するヘッドであって、中継部から遠ざかるほど径が減少する略円錐形のヘッドと、ヘッドの外周から突設されたブレードと、を備え、ブレードが、オーガー軸の回転時に、周辺土に対して材料を締め固める押圧面を有し、オーガー軸及びヘッドが、所定方向に延在して掘削土を含む材料を所定方向に案内する内部空間を画定し、ヘッドが、内部空間と外部とを連通する開口を側面に含む。【選択図】図１
PROBLEM TO BE SOLVED: To provide a ground improvement auger for forming a stable columnar body with large friction between the columnar body and peripheral soil.SOLUTION: A ground improvement auger includes an auger shaft extending in a prescribed direction, a roughly conical head rotating integrally with the auger shaft and having a diameter that tapers in a direction away from a relay part, and a blade protruded from an outer periphery of the head. The blade has a pressing surface that consolidates a material on peripheral soil, when the auger shaft rotates. The auger shaft and the head define an inner space extending in the prescribed direction and guiding the material including excavated soil in the prescribed direction. The head has an opening on a side surface that communicates the inner space with outside.SELECTED DRAWING: Figure 1
【課題】周辺土との摩擦の大きい安定した柱状体を形成する地盤改良オーガーを提供する。【解決手段】地盤改良オーガーは、所定方向に延在するオーガー軸と、オーガー軸と一体的に回転するヘッドであって、中継部から遠ざかるほど径が減少する略円錐形のヘッドと、ヘッドの外周から突設されたブレードと、を備え、ブレードが、オーガー軸の回転時に、周辺土に対して材料を締め固める押圧面を有し、オーガー軸及びヘッドが、所定方向に延在して掘削土を含む材料を所定方向に案内する内部空間を画定し、ヘッドが、内部空間と外部とを連通する開口を側面に含む。【選択図】図１
GROUND IMPROVEMENT AUGER
地盤改良オーガー
IIDA TETSUO (author)
2017-03-02
Patent
Electronic Resource
Japanese
IPC:
E02D
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