A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REMOVING METHOD OF STEEL PIPE PILE
To provide a removing method of a steel pipe pile capable of pulling-out to remove a steel pipe pile of joint type comprising connected thin dimeter steel pipes, without separating them.SOLUTION: A removing method of a steel pipe pile of this invention comprises: an excavation step of inserting a liquid feeding pipe A from a head portion of a steel pipe pile P into a pipe, and making the liquid feeding pipe A reach a tip of the steel pipe pile P while discharging sediment in the pipe by injecting water from the liquid feeding pipe A; a solidification material filling step of filling a solidification material B from the liquid feeding pipe A disposed at the tip of the steel pipe pile P into the pipe of the steel pipe pile P, and recovering the liquid feeding pipe A after filling; an insertion step of inserting a long tensile material C from the head portion of the steel pipe pile P into the pipe, and making a tip of the tensile material C reach near the tip of the steel pipe pile P; a solidification step of hardening the solidification material B; and a pulling-out step of pulling-out the steel pipe pile P from the underground via the tensile material C. Connection of steel pipe pile units P1 can be reinforced by the tensile material C integrally fastened in the pipe of the steel pipe pile P.SELECTED DRAWING: Figure 1
【課題】細径鋼管を連結してなる継手式の鋼管杭を分離させることなく引抜き撤去可能な鋼管杭の撤去方法を提供すること。【解決手段】本発明の鋼管杭の撤去方法は、鋼管杭Ｐの頭部から管内に送液管Ａを挿入し送液管Ａから水を噴射して管内の土砂を排除しつつ送液管Ａを鋼管杭Ｐの先端へ到達させる掘進工程と、鋼管杭Ｐの先端に配置した送液管Ａから鋼管杭Ｐの管内に固化材Ｂを充填し充填後に送液管Ａを回収する固化材充填工程と、鋼管杭Ｐの頭部から管内に長尺の引張材Ｃを挿入し引張材Ｃの先端を鋼管杭Ｐの先端付近まで到達させる挿入工程と、固化材Ｂを硬化させる固化工程と、引張材Ｃを介して鋼管杭Ｐを地中から引き抜く引き抜き工程とを備え、鋼管杭Ｐの管内に一体に固着した引張材Ｃによって鋼管杭単体Ｐ１同士の連結を補強可能に構成したことを特徴とする。【選択図】図１
REMOVING METHOD OF STEEL PIPE PILE
To provide a removing method of a steel pipe pile capable of pulling-out to remove a steel pipe pile of joint type comprising connected thin dimeter steel pipes, without separating them.SOLUTION: A removing method of a steel pipe pile of this invention comprises: an excavation step of inserting a liquid feeding pipe A from a head portion of a steel pipe pile P into a pipe, and making the liquid feeding pipe A reach a tip of the steel pipe pile P while discharging sediment in the pipe by injecting water from the liquid feeding pipe A; a solidification material filling step of filling a solidification material B from the liquid feeding pipe A disposed at the tip of the steel pipe pile P into the pipe of the steel pipe pile P, and recovering the liquid feeding pipe A after filling; an insertion step of inserting a long tensile material C from the head portion of the steel pipe pile P into the pipe, and making a tip of the tensile material C reach near the tip of the steel pipe pile P; a solidification step of hardening the solidification material B; and a pulling-out step of pulling-out the steel pipe pile P from the underground via the tensile material C. Connection of steel pipe pile units P1 can be reinforced by the tensile material C integrally fastened in the pipe of the steel pipe pile P.SELECTED DRAWING: Figure 1
【課題】細径鋼管を連結してなる継手式の鋼管杭を分離させることなく引抜き撤去可能な鋼管杭の撤去方法を提供すること。【解決手段】本発明の鋼管杭の撤去方法は、鋼管杭Ｐの頭部から管内に送液管Ａを挿入し送液管Ａから水を噴射して管内の土砂を排除しつつ送液管Ａを鋼管杭Ｐの先端へ到達させる掘進工程と、鋼管杭Ｐの先端に配置した送液管Ａから鋼管杭Ｐの管内に固化材Ｂを充填し充填後に送液管Ａを回収する固化材充填工程と、鋼管杭Ｐの頭部から管内に長尺の引張材Ｃを挿入し引張材Ｃの先端を鋼管杭Ｐの先端付近まで到達させる挿入工程と、固化材Ｂを硬化させる固化工程と、引張材Ｃを介して鋼管杭Ｐを地中から引き抜く引き抜き工程とを備え、鋼管杭Ｐの管内に一体に固着した引張材Ｃによって鋼管杭単体Ｐ１同士の連結を補強可能に構成したことを特徴とする。【選択図】図１
REMOVING METHOD OF STEEL PIPE PILE
鋼管杭の撤去方法
TAKADA TORU (author) / FUJITA MASAKAZU (author)
2020-12-24
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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