A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SUPPORT STEEL PIPE PILE AND CONSTRUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a support steel pipe pile and a construction method thereof, for imparting high bearing power, by sufficiently reducing rotary press-in resistance of a pile tip part, without executing complicated processing for the pile tip part.SOLUTION: The present invention relates to a support steel pipe pile 1 provided in the ground. The support steel pipe pile 1 comprises a steel pipe body 2 and a pile tip part 3 provided on the tip side of the steel pipe body 2. The pile tip part 3 has a one end side joining part formed by winding a steel plate where end parts in the width direction of the steel plate are joined and an expansion part for expanding an outer diameter of the pile tip part 3 by moving an end part in the width direction of the steel plate toward the other end side from the joining part by providing the steel pipe body 2 in the ground.
【課題】杭先端部に複雑な加工を実施することなく、杭先端部の回転圧入抵抗を十分に低減させて、高い支持力が付与された支持用鋼管杭及びその施工方法を提供する。【解決手段】地盤内に設けられる支持用鋼管杭１に関する。支持用鋼管杭１は、鋼管本体２と、鋼管本体２の先端側に設けられる杭先端部３とを備える。杭先端部３は、鋼板を巻くことで形成されて、鋼板の幅方向の端部が接合される一端側の接合部と、鋼管本体２が地盤内に設けられることで、接合部から他端側に向けて、鋼板の幅方向の端部が移動して、杭先端部３の外径を拡大させる拡大部とを有する。【選択図】図１
SUPPORT STEEL PIPE PILE AND CONSTRUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a support steel pipe pile and a construction method thereof, for imparting high bearing power, by sufficiently reducing rotary press-in resistance of a pile tip part, without executing complicated processing for the pile tip part.SOLUTION: The present invention relates to a support steel pipe pile 1 provided in the ground. The support steel pipe pile 1 comprises a steel pipe body 2 and a pile tip part 3 provided on the tip side of the steel pipe body 2. The pile tip part 3 has a one end side joining part formed by winding a steel plate where end parts in the width direction of the steel plate are joined and an expansion part for expanding an outer diameter of the pile tip part 3 by moving an end part in the width direction of the steel plate toward the other end side from the joining part by providing the steel pipe body 2 in the ground.
【課題】杭先端部に複雑な加工を実施することなく、杭先端部の回転圧入抵抗を十分に低減させて、高い支持力が付与された支持用鋼管杭及びその施工方法を提供する。【解決手段】地盤内に設けられる支持用鋼管杭１に関する。支持用鋼管杭１は、鋼管本体２と、鋼管本体２の先端側に設けられる杭先端部３とを備える。杭先端部３は、鋼板を巻くことで形成されて、鋼板の幅方向の端部が接合される一端側の接合部と、鋼管本体２が地盤内に設けられることで、接合部から他端側に向けて、鋼板の幅方向の端部が移動して、杭先端部３の外径を拡大させる拡大部とを有する。【選択図】図１
SUPPORT STEEL PIPE PILE AND CONSTRUCTION METHOD THEREOF
支持用鋼管杭及びその施工方法
ISHIHAMA YOSHIRO (author)
2015-06-22
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
STEEL PIPE PILE JOINT, STEEL PIPE PILE, AND CONSTRUCTION METHOD OF STEEL PIPE PILE
| European Patent Office | 2021
| European Patent Office | 2021
CONSTRUCTION METHOD FOR STEEL PIPE PILE AND STEEL PIPE PILE
| European Patent Office | 2022
STEEL PIPE PILE AND CONSTRUCTION METHOD FOR STEEL PIPE PILE
| European Patent Office | 2020