A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL PIPE, STEEL PIPE STRUCTURE AND CONSTRUCTION METHOD THEREOF
To provide a steel pipe buried in the ground while being rotated and excavating the ground, reduced in press-in resistance in press-in construction of the rotated steel pipe, dispensing with an auxiliary facility such as a water jet, and capable of suppressing turbidity in water in press-in construction, and to provide a steel pipe structure constructed by the steel pipe and a construction method thereof.SOLUTION: A steel pipe 1 related to the present invention is buried in the ground while being rotated and excavating the ground, and has a ground loosening member 5 provided at a tip part of the steel pipe 1 and spirally extending in a circumferential direction of the steel pipe 1 to loosen the ground. The ground loosening member 5 has an extended width toward the inside of the steel pipe 1 of 9.5 mm or more and 600 mm or less, and an extended width toward the outside of the steel pipe 1 of 0.05 times or less of an outer diameter of the steel pipe 1.SELECTED DRAWING: Figure 1
【課題】回転させて地盤を掘り進めながら地盤内に埋設される鋼管であって、回転させた鋼管の圧入施工時における圧入抵抗を低減しつつ、ウォータージェットのような付帯設備を必要とせず、水中での圧入施工時の濁りを抑制することができる鋼管を得る。また、該鋼管によって構築された鋼管構造体、該鋼管構造体の構築方法を得る。【解決手段】本発明に係る鋼管１は、回転させて地盤を掘り進めながら地盤内に埋設されるものであって、鋼管１の先端部に設けられると共に鋼管１の周方向に螺旋状に延出して地盤をほぐす地盤ほぐし部材５を有し、地盤ほぐし部材５は、鋼管１の内側への張り出し幅が9.5mm以上600mm以下であり、かつ鋼管１の外側への張り出し幅が鋼管１の外径の0.05倍以下になるよう設けられていることを特徴とするものである。【選択図】 図１
STEEL PIPE, STEEL PIPE STRUCTURE AND CONSTRUCTION METHOD THEREOF
To provide a steel pipe buried in the ground while being rotated and excavating the ground, reduced in press-in resistance in press-in construction of the rotated steel pipe, dispensing with an auxiliary facility such as a water jet, and capable of suppressing turbidity in water in press-in construction, and to provide a steel pipe structure constructed by the steel pipe and a construction method thereof.SOLUTION: A steel pipe 1 related to the present invention is buried in the ground while being rotated and excavating the ground, and has a ground loosening member 5 provided at a tip part of the steel pipe 1 and spirally extending in a circumferential direction of the steel pipe 1 to loosen the ground. The ground loosening member 5 has an extended width toward the inside of the steel pipe 1 of 9.5 mm or more and 600 mm or less, and an extended width toward the outside of the steel pipe 1 of 0.05 times or less of an outer diameter of the steel pipe 1.SELECTED DRAWING: Figure 1
【課題】回転させて地盤を掘り進めながら地盤内に埋設される鋼管であって、回転させた鋼管の圧入施工時における圧入抵抗を低減しつつ、ウォータージェットのような付帯設備を必要とせず、水中での圧入施工時の濁りを抑制することができる鋼管を得る。また、該鋼管によって構築された鋼管構造体、該鋼管構造体の構築方法を得る。【解決手段】本発明に係る鋼管１は、回転させて地盤を掘り進めながら地盤内に埋設されるものであって、鋼管１の先端部に設けられると共に鋼管１の周方向に螺旋状に延出して地盤をほぐす地盤ほぐし部材５を有し、地盤ほぐし部材５は、鋼管１の内側への張り出し幅が9.5mm以上600mm以下であり、かつ鋼管１の外側への張り出し幅が鋼管１の外径の0.05倍以下になるよう設けられていることを特徴とするものである。【選択図】 図１
STEEL PIPE, STEEL PIPE STRUCTURE AND CONSTRUCTION METHOD THEREOF
鋼管、鋼管構造体、鋼管構造体の構築方法
AWAZU SHINGO (author) / ONDA KUNIHIKO (author)
2022-03-11
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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