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Grouting system and grouting method for avoiding floating risk of implantable rock-socketed steel pipe pile
The invention discloses a grouting system and method for avoiding the floating risk of an implanted rock-socketed steel pipe pile. The grouting system comprises a steel pipe pile with a radial grout outlet, a first grouting pipe, a second grouting pipe, a first formwork, a second formwork and a sealing plate, the first formwork, the second formwork and the sealing plate are sequentially arranged in the steel pipe pile, a pile bottom cavity is formed between the first formwork and an end opening of the steel pipe pile, the discharging end of the first grouting pipe is communicated with the pile bottom cavity, and the discharging end of the second grouting pipe is communicated with the sealing plate. The discharging end of the second grouting pipe is arranged between the first formwork and the second formwork and communicates with the exterior of the steel pipe pile, and the feeding end of the first grouting pipe and the feeding end of the second grouting pipe are both arranged on the open side of the sealing plate. According to the grouting method, based on the grouting system, the grouting material added with the accelerator is pumped into the pile bottom cavity and the first annular space, so that the grouting material can be condensed and lose fluidity in a short time, the jacking effect and the buoyancy effect formed on the pile bottom in the follow-up grouting step are eliminated, and the floating problem is effectively solved.
本申请公开了避免植入式嵌岩钢管桩上浮风险的灌浆系统及灌浆方法。灌浆系统，包括：带有径向出浆口的钢管桩、第一灌浆管、第二灌浆管、第一模板、第二模板和封板，第一模板、第二模板和封板依次设置于钢管桩内，第一模板与钢管桩的端口之间形成桩底空腔，第一灌浆管的出料端与桩底空腔连通，第二灌浆管的出料端设置于第一模板和第二模板之间并与钢管桩的外部连通，第一灌浆管的进料端与第二灌浆管的进料端均设置于封板的开放侧。灌浆方法，基于所述的灌浆系统，采取向桩底空腔以及第一环形空间泵送添加了速凝剂的灌浆料，使得灌浆料能够在较短的时间内凝结，失去流动性，消除后续灌浆步骤对桩底形成的顶托作用和浮力作用，有效解决上浮问题。
Grouting system and grouting method for avoiding floating risk of implantable rock-socketed steel pipe pile
The invention discloses a grouting system and method for avoiding the floating risk of an implanted rock-socketed steel pipe pile. The grouting system comprises a steel pipe pile with a radial grout outlet, a first grouting pipe, a second grouting pipe, a first formwork, a second formwork and a sealing plate, the first formwork, the second formwork and the sealing plate are sequentially arranged in the steel pipe pile, a pile bottom cavity is formed between the first formwork and an end opening of the steel pipe pile, the discharging end of the first grouting pipe is communicated with the pile bottom cavity, and the discharging end of the second grouting pipe is communicated with the sealing plate. The discharging end of the second grouting pipe is arranged between the first formwork and the second formwork and communicates with the exterior of the steel pipe pile, and the feeding end of the first grouting pipe and the feeding end of the second grouting pipe are both arranged on the open side of the sealing plate. According to the grouting method, based on the grouting system, the grouting material added with the accelerator is pumped into the pile bottom cavity and the first annular space, so that the grouting material can be condensed and lose fluidity in a short time, the jacking effect and the buoyancy effect formed on the pile bottom in the follow-up grouting step are eliminated, and the floating problem is effectively solved.
本申请公开了避免植入式嵌岩钢管桩上浮风险的灌浆系统及灌浆方法。灌浆系统，包括：带有径向出浆口的钢管桩、第一灌浆管、第二灌浆管、第一模板、第二模板和封板，第一模板、第二模板和封板依次设置于钢管桩内，第一模板与钢管桩的端口之间形成桩底空腔，第一灌浆管的出料端与桩底空腔连通，第二灌浆管的出料端设置于第一模板和第二模板之间并与钢管桩的外部连通，第一灌浆管的进料端与第二灌浆管的进料端均设置于封板的开放侧。灌浆方法，基于所述的灌浆系统，采取向桩底空腔以及第一环形空间泵送添加了速凝剂的灌浆料，使得灌浆料能够在较短的时间内凝结，失去流动性，消除后续灌浆步骤对桩底形成的顶托作用和浮力作用，有效解决上浮问题。
Grouting system and grouting method for avoiding floating risk of implantable rock-socketed steel pipe pile
避免植入式嵌岩钢管桩上浮风险的灌浆系统及灌浆方法
WU HAIBING (author) / PAN XIAOWEI (author) / WANG DAPENG (author) / ZHU GUOHU (author) / CUI CAN (author) / ZHANG YUERAN (author) / WANG DONGDONG (author) / LYU DONGLIANG (author) / SUN XUAN (author) / LI CHENG (author)
2023-08-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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