After-grouting self-guiding hole PHC tubular pole tip anti-rusting cap construction device and construction process

Abstract

The invention relates to a pouring self-priming hole PHC tube pile sharp anti-rust cap constructing device, which is connected to the static hydraulic compress machine formed by water tank, multistage eccentric pump, high-pressure transmission tube, clamper, transmission tube, PHC hollow tube pile, high-pressure gas transmission tube and air compressor, with water jet gas jet priming hole, wherein the high-pressure pouring pump via high-pressure pouring tube and three-way tube is connected to the high-pressure water transmission tube; one-way valves are mounted between three-way tube and multistage eccentric pump, three-way tube and high-pressure pouring pump; when the PHC chamber tube pile is fed to the holding layer, and stopping jetting water and gas, starting the high-pressure pouring pump; using high-pressure pouring tube, three-way tube and high-pressure water transmission tube to feed some cement pulp to the pile sharp pump; filling steel pile sharp inner and outer; the forming anti-rust cap packed by cement pulp at the surface of pile sharp, to separate the pile sharp and soil, to resist rust and strengthen foundation, to improve its carrier force.

Description

technical field [0001] The invention relates to protective construction equipment for building foundation piles and a construction method thereof, in particular to a post-grouting self-leading hole PHC pipe pile tip antirust cap construction device and construction technology. Background technique [0002] A large number of foundation piles are used in the development of tall buildings. However, PHC pipe piles are produced industrially, the quality is intuitive, and the quality of the pile-forming process is easy to guarantee. Compared with other concrete pouring piles, it has the advantages of low cost, short construction period, and environmental protection. It has become the development direction of construction piles. The construction technology of PHC pipe pile with self-leading hole at the pile end is a method of sending PHC cavity pipe pile into the soil layer with a static hydraulic pile driver with high-pressure water flow and high-pressure airflow. When the pipe p...

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Problems solved by technology

However, the steel pile tip used in this process is buried in the soil for a long time, so it is inevitable to be soaked in water in the soil and corroded, which will eventually affect the single pile bearing capacity of the PHC pipe pile.

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