A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
One or more embodiments of the invention provide a bottom expanding device and method based on a cast-in-place large-diameter tubular pile. The bottom expanding method comprises the steps that firstly the cast-in-place large-diameter tubular pile is constructed; then an annular guide rail is laid and assembled along the periphery of the top end of the tubular pile, and the top end of a water jet cutting mechanism is connected to the annular guide rail; the bottom end of the water jet cutting mechanism vertically extends into an expanded head part at the bottom end of the tubular pile and is connected with a beam nozzle; meanwhile, a slurry suction mechanism is arranged, and the bottom end of the slurry suction mechanism vertically extends into the expanded head part at the bottom end of the tubular pile and is connected with a slurry pump; the water jet cutting mechanism is controlled to circumferentially rotate along the annular guide rail and close to the inner side wall of the tubular pile, so that the beam nozzle is driven to perform annularly walk and cut; and meanwhile, slurry generated by cutting is sucked out through the slurry pump, an adjusting part is used for adjusting the beam nozzle in different vertical heights in a telescopic mode, so that an expanded head meeting the design requirement is formed at the bottom end of the pile, and the bearing capacity of the tubular pile is greatly improved.
本说明书一个或多个实施例提供一种基于现浇大直径管桩的扩底装置及扩底方法，先通过施工现浇大直径管桩，再沿管桩顶端一周铺设装配环状导轨，并将水刀切割机构顶端连接于环状导轨上，水刀切割机构底端竖直伸入管桩底端的扩大头部分，并连接有束流喷嘴，同时设置有泥浆吸出机构，泥浆吸出机构底端竖直伸入管桩底端的扩大头部分，并连接有泥浆泵，通过控制水刀切割机构沿环状导轨并贴近管桩内侧壁周向转动，以带动束流喷嘴环向行走切割，同时利用泥浆泵把切割产生的泥浆吸出，并通过调节部用于伸缩调节束流喷嘴不同竖向高度，以使桩底端形成满足设计要求的扩大头，从而大幅度提升管桩的承载能力。
One or more embodiments of the invention provide a bottom expanding device and method based on a cast-in-place large-diameter tubular pile. The bottom expanding method comprises the steps that firstly the cast-in-place large-diameter tubular pile is constructed; then an annular guide rail is laid and assembled along the periphery of the top end of the tubular pile, and the top end of a water jet cutting mechanism is connected to the annular guide rail; the bottom end of the water jet cutting mechanism vertically extends into an expanded head part at the bottom end of the tubular pile and is connected with a beam nozzle; meanwhile, a slurry suction mechanism is arranged, and the bottom end of the slurry suction mechanism vertically extends into the expanded head part at the bottom end of the tubular pile and is connected with a slurry pump; the water jet cutting mechanism is controlled to circumferentially rotate along the annular guide rail and close to the inner side wall of the tubular pile, so that the beam nozzle is driven to perform annularly walk and cut; and meanwhile, slurry generated by cutting is sucked out through the slurry pump, an adjusting part is used for adjusting the beam nozzle in different vertical heights in a telescopic mode, so that an expanded head meeting the design requirement is formed at the bottom end of the pile, and the bearing capacity of the tubular pile is greatly improved.
本说明书一个或多个实施例提供一种基于现浇大直径管桩的扩底装置及扩底方法，先通过施工现浇大直径管桩，再沿管桩顶端一周铺设装配环状导轨，并将水刀切割机构顶端连接于环状导轨上，水刀切割机构底端竖直伸入管桩底端的扩大头部分，并连接有束流喷嘴，同时设置有泥浆吸出机构，泥浆吸出机构底端竖直伸入管桩底端的扩大头部分，并连接有泥浆泵，通过控制水刀切割机构沿环状导轨并贴近管桩内侧壁周向转动，以带动束流喷嘴环向行走切割，同时利用泥浆泵把切割产生的泥浆吸出，并通过调节部用于伸缩调节束流喷嘴不同竖向高度，以使桩底端形成满足设计要求的扩大头，从而大幅度提升管桩的承载能力。
Bottom expanding device and method based on cast-in-place large-diameter tubular pile
一种基于现浇大直径管桩的扩底装置及扩底方法
2021-11-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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