A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cast-in-place concrete pile with expanded-diameter threaded pile section, drill bit device for pile forming and pile forming method
The invention relates to a cast-in-place concrete pile with an expanded-diameter thread pile section, a drill bit device for pile forming and a pile forming method. The cast-in-place concrete pile with the expanded-diameter threaded pile section comprises a concrete main body pile, and the concrete main body pile is composed of a pile bottom, a pile body and a pile top; the shape of the pile bottom is an expanded head structure formed by extending the concrete main body pile to the periphery through re-compacted concrete; the cast-in-place concrete pile is provided with a thread pile section and at least one expanded-diameter thread pile section, and the thread pile section is formed by spirally coiling threads which are of an integrated structure and protrude outwards on the outer edge ofthe concrete main body pile; the expanded-diameter threaded pile section is formed by extending part of the threaded pile section to the periphery through re-compacted concrete, and the outer diameter of the outer edge of the expanded-diameter threaded pile section is larger than that of the outer edge of the threaded pile section; and the thread pile section and the expanded-diameter thread pilesection are arranged on the pile body and/or the pile top. The cast-in-place concrete pile is suitable for soil layers such as filled soil, cohesive soil, silt and sandy soil, one-time pile forming is achieved, and the high bearing capacity is achieved.
本发明创造涉及一种带扩大径螺牙桩段的混凝土灌注桩及成桩用钻头装置和成桩方法。所述带扩大径螺牙桩段的混凝土灌注桩，包括混凝土主体桩，所述混凝土主体桩由桩底部、桩身部和桩顶部组成；所述桩底部的形状是混凝土主体桩通过复挤密混凝土向四周延伸形成的扩大头结构；设有螺牙桩段和至少一段扩大径螺牙桩段，所述螺牙桩段是在混凝土主体桩外缘制有一体结构的向外突出的螺旋盘绕的螺牙；所述扩大径螺牙桩段是将部分螺牙桩段通过复挤密混凝土向四周延伸形成外缘外径大于螺牙桩段外缘外径的扩大径螺牙桩段；螺牙桩段和扩大径螺牙桩段设置在桩身部和/或桩顶部。本发明创造适用于填土、黏性土、粉土、砂土等土层、一次性成桩且具有高承载能力。
Cast-in-place concrete pile with expanded-diameter threaded pile section, drill bit device for pile forming and pile forming method
The invention relates to a cast-in-place concrete pile with an expanded-diameter thread pile section, a drill bit device for pile forming and a pile forming method. The cast-in-place concrete pile with the expanded-diameter threaded pile section comprises a concrete main body pile, and the concrete main body pile is composed of a pile bottom, a pile body and a pile top; the shape of the pile bottom is an expanded head structure formed by extending the concrete main body pile to the periphery through re-compacted concrete; the cast-in-place concrete pile is provided with a thread pile section and at least one expanded-diameter thread pile section, and the thread pile section is formed by spirally coiling threads which are of an integrated structure and protrude outwards on the outer edge ofthe concrete main body pile; the expanded-diameter threaded pile section is formed by extending part of the threaded pile section to the periphery through re-compacted concrete, and the outer diameter of the outer edge of the expanded-diameter threaded pile section is larger than that of the outer edge of the threaded pile section; and the thread pile section and the expanded-diameter thread pilesection are arranged on the pile body and/or the pile top. The cast-in-place concrete pile is suitable for soil layers such as filled soil, cohesive soil, silt and sandy soil, one-time pile forming is achieved, and the high bearing capacity is achieved.
本发明创造涉及一种带扩大径螺牙桩段的混凝土灌注桩及成桩用钻头装置和成桩方法。所述带扩大径螺牙桩段的混凝土灌注桩，包括混凝土主体桩，所述混凝土主体桩由桩底部、桩身部和桩顶部组成；所述桩底部的形状是混凝土主体桩通过复挤密混凝土向四周延伸形成的扩大头结构；设有螺牙桩段和至少一段扩大径螺牙桩段，所述螺牙桩段是在混凝土主体桩外缘制有一体结构的向外突出的螺旋盘绕的螺牙；所述扩大径螺牙桩段是将部分螺牙桩段通过复挤密混凝土向四周延伸形成外缘外径大于螺牙桩段外缘外径的扩大径螺牙桩段；螺牙桩段和扩大径螺牙桩段设置在桩身部和/或桩顶部。本发明创造适用于填土、黏性土、粉土、砂土等土层、一次性成桩且具有高承载能力。
Cast-in-place concrete pile with expanded-diameter threaded pile section, drill bit device for pile forming and pile forming method
一种带扩大径螺牙桩段的混凝土灌注桩及成桩用钻头装置和成桩方法
LIU SHOUJIN (author) / ZHANG XICAI (author) / ZHAO SHIFAN (author) / FANG GUANGXIU (author) / ZHAO YUE (author) / YANG YANJUN (author) / WU JIANXIANG (author) / AN ZHIHONG (author) / LI JUNYANG (author) / GAO FENG (author)
2021-01-22
Patent
Electronic Resource
Chinese
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Pile head forming equipment of cast-in-place concrete pile
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