A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cast-in-place concrete pile with mixing layer wrapped pile section, drill bit for pile forming and construction method
The invention relates to a cast-in-place concrete pile with a mixing layer wrapped pile section, a drill bit for pile forming and a construction method. The cast-in-place concrete pile with the mixing layer wrapped pile section is composed of a pile body section and a pile bottom section; the pile body section at least comprises one mixing layer wrapped pile section; and the mixing layer wrapped pile section is arranged at the bottom end and/or the middle portion and/or the top end of the pile body section. According to the mixing layer wrapped pile section, the periphery of a pile body of a foundation pile section is wrapped by a mixing layer which has a certain thickness and is formed by a mixture formed by stirring and mixing pile side soil and concrete through an extruding and expanding protruding block of the drill bit, and the mixing layer wrapped pile section and the pile body of the foundation pile section are fixedly connected into the integrated pile section; the bearing capacity of the created pile is high, the controllability of the outer diameter of the mixing layer is good, the extruding and expanding protruding block in an expanding sliding block in the drill bit has the soil extruding effect during work, and threaded pile sections with different expanding diameters can be formed; and the drill bit for pile forming is simple in structure, has the soil extruding and hole forming functions, and is small in residual soil emission, easy to operate during pile forming construction, good in pile forming quality controllability, high in work efficiency and free of vibration and mud during construction.
本发明创造涉及带拌合层包裹桩段的混凝土灌注桩及成桩用钻头和施工方法。带拌合层包裹桩段的混凝土灌注桩由桩身段和桩底段构成，桩身段中至少包括一段拌合层包裹桩段，所述拌合层包裹桩段设在桩身段的底端和/或中部和/或顶端；所述拌合层包裹桩段是基桩段的桩身外围被具有一定厚度的、由桩侧土与混凝土经钻头的挤扩凸块搅拌混合的混合物形成的拌合层所包裹，并与基桩段的桩身固结成一体的桩段。本发明创造成桩承载力高，拌合层的外径可控性好，钻头中扩径滑块中的挤扩凸块工作时具有挤土效果，可形成不同扩大径的螺纹桩段，成桩钻头结构简单，具有挤土成孔功能，残土排放少，成桩施工操作简单，成桩质量可控性好，工效高，施工无振动、无泥浆。
Cast-in-place concrete pile with mixing layer wrapped pile section, drill bit for pile forming and construction method
The invention relates to a cast-in-place concrete pile with a mixing layer wrapped pile section, a drill bit for pile forming and a construction method. The cast-in-place concrete pile with the mixing layer wrapped pile section is composed of a pile body section and a pile bottom section; the pile body section at least comprises one mixing layer wrapped pile section; and the mixing layer wrapped pile section is arranged at the bottom end and/or the middle portion and/or the top end of the pile body section. According to the mixing layer wrapped pile section, the periphery of a pile body of a foundation pile section is wrapped by a mixing layer which has a certain thickness and is formed by a mixture formed by stirring and mixing pile side soil and concrete through an extruding and expanding protruding block of the drill bit, and the mixing layer wrapped pile section and the pile body of the foundation pile section are fixedly connected into the integrated pile section; the bearing capacity of the created pile is high, the controllability of the outer diameter of the mixing layer is good, the extruding and expanding protruding block in an expanding sliding block in the drill bit has the soil extruding effect during work, and threaded pile sections with different expanding diameters can be formed; and the drill bit for pile forming is simple in structure, has the soil extruding and hole forming functions, and is small in residual soil emission, easy to operate during pile forming construction, good in pile forming quality controllability, high in work efficiency and free of vibration and mud during construction.
本发明创造涉及带拌合层包裹桩段的混凝土灌注桩及成桩用钻头和施工方法。带拌合层包裹桩段的混凝土灌注桩由桩身段和桩底段构成，桩身段中至少包括一段拌合层包裹桩段，所述拌合层包裹桩段设在桩身段的底端和/或中部和/或顶端；所述拌合层包裹桩段是基桩段的桩身外围被具有一定厚度的、由桩侧土与混凝土经钻头的挤扩凸块搅拌混合的混合物形成的拌合层所包裹，并与基桩段的桩身固结成一体的桩段。本发明创造成桩承载力高，拌合层的外径可控性好，钻头中扩径滑块中的挤扩凸块工作时具有挤土效果，可形成不同扩大径的螺纹桩段，成桩钻头结构简单，具有挤土成孔功能，残土排放少，成桩施工操作简单，成桩质量可控性好，工效高，施工无振动、无泥浆。
Cast-in-place concrete pile with mixing layer wrapped pile section, drill bit for pile forming and construction method
带拌合层包裹桩段的混凝土灌注桩及成桩用钻头和施工方法
LIU SHOUJIN (author) / ZHANG XICAI (author) / ZHAO SHIFAN (author) / FANG GUANGXIU (author) / ZHAO YUE (author) / LIU YANG (author) / YANG YANJUN (author) / JIN CHENGBIN (author) / JIN GUANGNAN (author) / AN ZHIHONG (author)
2021-06-04
Patent
Electronic Resource
Chinese
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