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CONSTRUCTION METHOD OF STEEL PIPE PILE AND STEEL PIPE PILE FOUNDATION
To provide a construction method of a steel pipe pile which can improve workability.SOLUTION: A construction method of a steel pipe pile is a construction method of a steel pipe pile for rotationally pressing-in a steel pipe pile 2 having spiral projections therein into the ground, and includes a first rotational press-in step of rotationally pressing-in the steel pipe pile 2 in a reverse turning direction R1 that a downward inclination angle θ1 formed by the spiral projections 4 and a steel pipe axis Z, and a construction angle θ2 composed of a displacement amount D2 in a rotation direction in rotational press-in and a displacement amount D1 in a vertical direction become as quadrants on opposite sides across a steel pipe axis Z. The first rotational press-in step penetrates the tip of the steel pipe pile 2 into a support layer, after the first rotational press-in step, the construction method includes a second rotational press-in step of rotationally pressing-in the steel pipe pile 2 in a normal turning direction R2 that the inclination angle θ1 and the construction angle θ2 become the same quadrant.SELECTED DRAWING: Figure 2
【課題】施工性を向上させることが可能となる鋼管杭の施工方法を提供する。【解決手段】実施形態における鋼管杭の施工方法は、内面に螺旋状の突起を有する鋼管杭２を地盤に回転圧入する鋼管杭の施工方法であって、螺旋状の突起４と鋼管軸Ｚとがなす下向きの傾斜角度θ１と、回転圧入時の回転方向の変位量Ｄ２と鉛直方向の変位量Ｄ１とで構成する施工角度θ２とが、鋼管軸Ｚを挟んで反対側の象限となる逆旋回方向Ｒ１に、鋼管杭２を回転圧入する第１回転圧入工程を備える。また、第１回転圧入工程では、鋼管杭２の先端を支持層に貫入し、第１回転圧入工程の後に、傾斜角度θ１と、施工角度θ２とが、同一象限となる正旋回方向Ｒ２に、鋼管杭２を回転圧入する第２回転圧入工程を備える。【選択図】図２
CONSTRUCTION METHOD OF STEEL PIPE PILE AND STEEL PIPE PILE FOUNDATION
To provide a construction method of a steel pipe pile which can improve workability.SOLUTION: A construction method of a steel pipe pile is a construction method of a steel pipe pile for rotationally pressing-in a steel pipe pile 2 having spiral projections therein into the ground, and includes a first rotational press-in step of rotationally pressing-in the steel pipe pile 2 in a reverse turning direction R1 that a downward inclination angle θ1 formed by the spiral projections 4 and a steel pipe axis Z, and a construction angle θ2 composed of a displacement amount D2 in a rotation direction in rotational press-in and a displacement amount D1 in a vertical direction become as quadrants on opposite sides across a steel pipe axis Z. The first rotational press-in step penetrates the tip of the steel pipe pile 2 into a support layer, after the first rotational press-in step, the construction method includes a second rotational press-in step of rotationally pressing-in the steel pipe pile 2 in a normal turning direction R2 that the inclination angle θ1 and the construction angle θ2 become the same quadrant.SELECTED DRAWING: Figure 2
【課題】施工性を向上させることが可能となる鋼管杭の施工方法を提供する。【解決手段】実施形態における鋼管杭の施工方法は、内面に螺旋状の突起を有する鋼管杭２を地盤に回転圧入する鋼管杭の施工方法であって、螺旋状の突起４と鋼管軸Ｚとがなす下向きの傾斜角度θ１と、回転圧入時の回転方向の変位量Ｄ２と鉛直方向の変位量Ｄ１とで構成する施工角度θ２とが、鋼管軸Ｚを挟んで反対側の象限となる逆旋回方向Ｒ１に、鋼管杭２を回転圧入する第１回転圧入工程を備える。また、第１回転圧入工程では、鋼管杭２の先端を支持層に貫入し、第１回転圧入工程の後に、傾斜角度θ１と、施工角度θ２とが、同一象限となる正旋回方向Ｒ２に、鋼管杭２を回転圧入する第２回転圧入工程を備える。【選択図】図２
CONSTRUCTION METHOD OF STEEL PIPE PILE AND STEEL PIPE PILE FOUNDATION
鋼管杭の施工方法及び鋼管杭基礎
OMAE NORIMORI (author) / SUZUKI KENGO (author) / TODA KAZUHIDE (author) / SAWAISHI MASAMICHI (author) / SHOJI TOMOYUKI (author) / NAGAURA TAKAAKI (author)
2024-03-07
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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