An Assembled Vertical Shield Ring Foundation Pile and Its Construction Method

Abstract

The invention discloses an assembly type vertical shield annular foundation pile and a construction method. Before construction, a pile bottom module and a standard module are precast through a factory, the pile bottom module is provided with steel armored blade feet, and the standard module is of a double-layer box-shaped structure formed by an inner wall and an outer wall. According to the assembly type vertical shield annular foundation pile and the construction method provided by the invention, a precast reinforced concrete pipe piece is adopted, so that the pile body quality is high; a pipe piece with the double-layer box-shaped structure provides a working space and is used as a pile hole protection wall at the same time. The pile body pipe piece is provided with an elastic sealing gasket, and a rubber pressure waterproof bar is adopted, so that the large-area pile body waterproof construction is reduced, the construction quality is improved, and the economic benefit is increased. According to the construction method of the assembly type vertical shield annular foundation pile provided by the invention, the problem that the number of reinforcement bar joints is large is solved, and the pile body connecting parts adopt high-strength bolts. The method is adopted to construct the large-diameter hollow pile foundation, and no large-diameter drilling machine is needed, so thatthe safety of the construction process is improved, the sufficient construction space is provided, and meanwhile, the effects on shortening the working period, improving the construction quality andreducing the construction cost are achieved.

Description

technical field [0001] The invention belongs to the field of underground engineering construction and is mainly applied to the pile foundation engineering of large bridges and the construction of pile foundations of other large buildings. Background technique [0002] For a long time, the pile foundations of the substructure are mostly solid structures. With the substantial increase in the demand for foundation support capacity, in most cases, it is uneconomical to use solid cast-in-situ piles with enlarged cross-sections. Large-diameter solid piles have the problem that the concrete bearing capacity of the pile core cannot be fully utilized, resulting in a large waste of materials. . Hollow pile refers to the foundation pile with circular section constructed by certain technical means. It is characterized by changing the traditional solid section into a circular section, so as to save concrete, reduce the self-weight of the pile, increase the friction area of ​​the pile bo...

AI Technical Summary

Problems solved by technology

(2) The construction method of this assembled vertical shield ring foundation pile proposed by the present invention solves the problem of a large number of steel bar joints, and high-strength bolts are used for the pile body connection parts

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