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A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF STEEL PIPE PILE AND STEEL PIPE PILE
To provide a construction method of a steel pipe pile which can enhance construction performance to the ground having a riprap layer or a boulder layer, and the steel pipe pile.SOLUTION: This construction method of a steel pipe pile for driving the steel pipe pile 1 into the ground having a riprap layer 23 and/or a boulder layer by using a rotating press-in machine 3 comprises a process for arranging a high-pressure water jet nozzle 7 which can inject high-pressure water 11 having water pressure exceeding 50 MPa to a tip external peripheral part of the steel pipe pile 1, setting a preset vertical load and a rotational speed suitable for regulating the movement of ripraps 15 or boulders by a tip of the steel pipe pile 1 when the steel pipe pile arrives at least at the riprap layer 23 or the boulder layer at the pressure-insertion of the steel pipe pile 1, and crushing the ripraps 15 or the boulders by injecting the high-pressure water 11 from the high-pressure water jet nozzle 7.SELECTED DRAWING: Figure 1
【課題】捨石層あるいは転石層を有する地盤への施工性を高めることができる鋼管杭の施工方法及び鋼管杭を提供する。【解決手段】本発明に係る鋼管杭の施工方法は、捨石層２３及び／又は転石層を有する地盤に回転圧入機３によって鋼管杭１を打設する方法であって、鋼管杭１の先端外周部に５０MPa超えの水圧の高圧水１１を噴射可能な高圧ウォータジェットノズル７を配設し、鋼管杭１を回転圧入するに際して、少なくとも捨石層２３又は転石層に至った時には、鋼管杭１の先端によって捨石１５又は転石の移動を規制するのに適切な予め設定した鉛直荷重と回転速度にして、高圧ウォータジェットノズル７から高圧水１１を噴射して捨石１５又は転石を破砕する工程を備えたことを特徴とするものである。【選択図】 図１
CONSTRUCTION METHOD OF STEEL PIPE PILE AND STEEL PIPE PILE
To provide a construction method of a steel pipe pile which can enhance construction performance to the ground having a riprap layer or a boulder layer, and the steel pipe pile.SOLUTION: This construction method of a steel pipe pile for driving the steel pipe pile 1 into the ground having a riprap layer 23 and/or a boulder layer by using a rotating press-in machine 3 comprises a process for arranging a high-pressure water jet nozzle 7 which can inject high-pressure water 11 having water pressure exceeding 50 MPa to a tip external peripheral part of the steel pipe pile 1, setting a preset vertical load and a rotational speed suitable for regulating the movement of ripraps 15 or boulders by a tip of the steel pipe pile 1 when the steel pipe pile arrives at least at the riprap layer 23 or the boulder layer at the pressure-insertion of the steel pipe pile 1, and crushing the ripraps 15 or the boulders by injecting the high-pressure water 11 from the high-pressure water jet nozzle 7.SELECTED DRAWING: Figure 1
【課題】捨石層あるいは転石層を有する地盤への施工性を高めることができる鋼管杭の施工方法及び鋼管杭を提供する。【解決手段】本発明に係る鋼管杭の施工方法は、捨石層２３及び／又は転石層を有する地盤に回転圧入機３によって鋼管杭１を打設する方法であって、鋼管杭１の先端外周部に５０MPa超えの水圧の高圧水１１を噴射可能な高圧ウォータジェットノズル７を配設し、鋼管杭１を回転圧入するに際して、少なくとも捨石層２３又は転石層に至った時には、鋼管杭１の先端によって捨石１５又は転石の移動を規制するのに適切な予め設定した鉛直荷重と回転速度にして、高圧ウォータジェットノズル７から高圧水１１を噴射して捨石１５又は転石を破砕する工程を備えたことを特徴とするものである。【選択図】 図１
CONSTRUCTION METHOD OF STEEL PIPE PILE AND STEEL PIPE PILE
鋼管杭の施工方法、鋼管杭
ONDA KUNIHIKO (author) / AWAZU SHINGO (author) / ICHIKAWA KAZUOMI (author) / OBA YUTO (author)
2020-03-12
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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