Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HOLLOW STEEL PIPE AND METHOD OF DRAWING OUT EXISTING STRUCTURE USING THE SAME
To provide a drawing-out method that prevents soil from being deposited or stuck on the inside of a hollow steel pipe upon edge-cutting between an existing structure buried in the ground such as an existing pile and its surrounding ground.SOLUTION: A hollow steel pipe 10 comprises a deposition prevention mechanism 40 removing deposited soil on an inner peripheral wall 10i and backfill material. The deposition prevention mechanism 40 may include a co-rotation prevention mechanism 42. The co-rotation prevention mechanism 42 may be provided with apertures 43 arranged along an outer peripheral wall 10o of the hollow steel pipe 10 and a protruding body 44 passing through the apertures 43 from the inside to the outside of the hollow steel pipe 10.SELECTED DRAWING: Figure 12A
【課題】既存杭をはじめとする、地盤に埋設された既設構造物とその周囲地盤とを中空鋼管により縁切りするにあたり、当該中空鋼管の内部に土が付着したりこびりついたりしてしまうのを抑制する。【解決手段】中空鋼管１０は、内周壁１０ｉに付着した土及び埋め戻し材を削ぎ落とす付着抑制機構４０を有する。付着抑制機構４０は、供回り抑制機構４２を含むものであってもよい。供回り抑制機構４２は、当該中空鋼管１０の外周壁１０ｏに沿って設けられた開孔４３と、当該中空鋼管１０の内側から外側に向かい開孔４３を通じる突起体４４と、を備えていてもよい。【選択図】図１２Ａ
HOLLOW STEEL PIPE AND METHOD OF DRAWING OUT EXISTING STRUCTURE USING THE SAME
To provide a drawing-out method that prevents soil from being deposited or stuck on the inside of a hollow steel pipe upon edge-cutting between an existing structure buried in the ground such as an existing pile and its surrounding ground.SOLUTION: A hollow steel pipe 10 comprises a deposition prevention mechanism 40 removing deposited soil on an inner peripheral wall 10i and backfill material. The deposition prevention mechanism 40 may include a co-rotation prevention mechanism 42. The co-rotation prevention mechanism 42 may be provided with apertures 43 arranged along an outer peripheral wall 10o of the hollow steel pipe 10 and a protruding body 44 passing through the apertures 43 from the inside to the outside of the hollow steel pipe 10.SELECTED DRAWING: Figure 12A
【課題】既存杭をはじめとする、地盤に埋設された既設構造物とその周囲地盤とを中空鋼管により縁切りするにあたり、当該中空鋼管の内部に土が付着したりこびりついたりしてしまうのを抑制する。【解決手段】中空鋼管１０は、内周壁１０ｉに付着した土及び埋め戻し材を削ぎ落とす付着抑制機構４０を有する。付着抑制機構４０は、供回り抑制機構４２を含むものであってもよい。供回り抑制機構４２は、当該中空鋼管１０の外周壁１０ｏに沿って設けられた開孔４３と、当該中空鋼管１０の内側から外側に向かい開孔４３を通じる突起体４４と、を備えていてもよい。【選択図】図１２Ａ
HOLLOW STEEL PIPE AND METHOD OF DRAWING OUT EXISTING STRUCTURE USING THE SAME
中空鋼管およびこれを用いた既設構造物の引き抜き方法
MAEJIMA TADASHI (Autor:in) / TSUKADA YOSHIAKI (Autor:in) / TAMAI TOSHIYUKI (Autor:in) / NOGUCHI TAKEHIKO (Autor:in) / MUROKI TOMOSHI (Autor:in)
04.01.2023
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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