Anti-corrosion inclusion bored concrete pile used for saline soil foundation and construction method thereof

Abstract

The invention relates to an anti-corrosion inclusion bored concrete pile used for saline soil foundations and a construction method thereof. The bored concrete pile comprises a concrete pile body in structure, wherein the inside of the concrete pile body is provided with a reinforcement cage, a flexible, watertight and anticorrosive protection tube is covered on the bottom and periphery of the concrete pile body; and the watertight and anticorrosive protection tube is formed by hot-pressing or welding n layers of polyethylene geotextile bags and n-1 layers of geomembranes, and n is not less than 2. The construction method comprises the following steps: injecting cement mortar between pile holes and the watertight and anticorrosive protection tube, then injecting water in the watertight and anticorrosive protection tube to ensure that the watertight and anticorrosive protection tube expands to the pile hole wall, then injecting concrete paste in the watertight and anticorrosive protection tube, discharging water from the watertight and anticorrosive protection tube by using the concrete paste, and obtaining the bored concrete pile when concrete is set. The invention solves the anticorrosive problem of the concrete pile in saline soil areas, effectively reduces the production cost of the anti-corrosion bored concrete pile and satisfies the strength requirements of projects. The anti-corrosion inclusion bored concrete pile of the invention is applicable to the concrete pile construction with anticorrosive requirements and is especially used in saline soil foundations.

Description

technical field [0001] The invention relates to a concrete filling pile and a construction method thereof. Background technique [0002] The anti-corrosion problem of steel structure and concrete in saline soil area has always been the research and development goal of construction industry personnel. Steel and concrete are the main body of various important buildings at present. The structure exposed on the ground can be anti-corrosion by regular brushing with various anti-corrosion materials, but the anti-corrosion of underground projects is more difficult. Because the components are in direct contact with highly corrosive saline soil and brine, it is impossible to regularly brush anti-corrosion materials, so people routinely use the following two methods for anti-corrosion treatment in actual engineering: [0003] (1) Concrete cast-in-situ piles wrapped and protected by thick-walled steel pipes, the wall thickness is generally ≥10mm. Generally, the length of the pile is ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an anti-corrosion encased concrete cast-in-situ pile for saline soil foundation application and its construction method, to solve the high cost of anti-corrosion treatment of concrete poured-in-situ piles in saline soil areas and the technology that may reduce the strength of concrete problems; and to solve the specific construction method of anti-corrosion concrete cast-in-place piles

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