A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF ROTARY PILE, AND ROTARY PILE FOUNDATION STRUCTURE
To further effectively prevent diffusion of contaminants when constructing piles in the ground containing a contaminated layer.SOLUTION: A construction method of a rotary pile makes a rotary pile 10 comprising a pile body 20, a spiral blade portion 21 provided at a tip of the pile body 20, and an enlarged diameter portion 30 arranged coaxially with the pile body 20 and having an outer diameter larger than an outer diameter of the pile body 20 penetrate into the ground in which a contaminated aquifer 1, an impermeable layer 2, and a supporting layer 4 layered in that order from a surface side. The construction method of a rotary pile includes the steps of: making the pile body 20 and the blade portion 21 penetrate into the ground; making the enlarged diameter portion 30 penetrate into the ground and compacting the impermeable layer 2 near an outer peripheral surface of the pile body 20 with a pressing surface 33 formed at a lower end of the enlarged diameter portion 30; and making the blade portion 21 reach the supporting layer 4.SELECTED DRAWING: Figure 1
【課題】汚染層を含む地盤に杭を施工するにあたり、汚染物質が拡散するのをより効果的に防止する。【解決手段】地表側から順に汚染帯水層１、不透水層２および支持層４が積層している地盤に、杭本体２０、杭本体２０の先端に設けられた螺旋状の羽根部２１、および杭本体２０と同軸状に配置され杭本体２０の外径よりも大きい外径を有する拡径部３０を備える回転杭１０を貫入させる施工方法であって、杭本体２０および羽根部２１を地盤に貫入させる工程と、拡径部３０を地盤に貫入させて、拡径部３０の下端に形成される押圧面３３で杭本体２０の外周面近傍の不透水層２を圧密する工程と、羽根部２１を支持層４に到達させる工程とを含む、回転杭の施工方法を提供する。【選択図】図１
CONSTRUCTION METHOD OF ROTARY PILE, AND ROTARY PILE FOUNDATION STRUCTURE
To further effectively prevent diffusion of contaminants when constructing piles in the ground containing a contaminated layer.SOLUTION: A construction method of a rotary pile makes a rotary pile 10 comprising a pile body 20, a spiral blade portion 21 provided at a tip of the pile body 20, and an enlarged diameter portion 30 arranged coaxially with the pile body 20 and having an outer diameter larger than an outer diameter of the pile body 20 penetrate into the ground in which a contaminated aquifer 1, an impermeable layer 2, and a supporting layer 4 layered in that order from a surface side. The construction method of a rotary pile includes the steps of: making the pile body 20 and the blade portion 21 penetrate into the ground; making the enlarged diameter portion 30 penetrate into the ground and compacting the impermeable layer 2 near an outer peripheral surface of the pile body 20 with a pressing surface 33 formed at a lower end of the enlarged diameter portion 30; and making the blade portion 21 reach the supporting layer 4.SELECTED DRAWING: Figure 1
【課題】汚染層を含む地盤に杭を施工するにあたり、汚染物質が拡散するのをより効果的に防止する。【解決手段】地表側から順に汚染帯水層１、不透水層２および支持層４が積層している地盤に、杭本体２０、杭本体２０の先端に設けられた螺旋状の羽根部２１、および杭本体２０と同軸状に配置され杭本体２０の外径よりも大きい外径を有する拡径部３０を備える回転杭１０を貫入させる施工方法であって、杭本体２０および羽根部２１を地盤に貫入させる工程と、拡径部３０を地盤に貫入させて、拡径部３０の下端に形成される押圧面３３で杭本体２０の外周面近傍の不透水層２を圧密する工程と、羽根部２１を支持層４に到達させる工程とを含む、回転杭の施工方法を提供する。【選択図】図１
CONSTRUCTION METHOD OF ROTARY PILE, AND ROTARY PILE FOUNDATION STRUCTURE
回転杭の施工方法および回転杭基礎構造
MARUYAMA SAKAE (author) / WADA MASATOSHI (author) / FURUYA KOHEI (author) / OKI YASUHIRO (author)
2024-10-10
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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