Foundation pile anti-corrosion system based on action of electric field

Abstract

The invention discloses a foundation pile anti-corrosion system based on the action of an electric field. The foundation pile anti-corrosion system comprises a foundation pile body. A plurality of electric conductors are arranged at the certain distance positions of the circumference of the periphery of the foundation pile body at equal intervals in an embedded manner. An electric conduction layeris arranged in the foundation pile body. The outer surfaces of the electric conductors are wrapped by an insulating waterproof layer. An additional alternating current power source is arranged on thefoundation pile anti-corrosion system. An output negative electrode of the additional alternating current power source is connected with the electric conduction layer in the pile body through a wire,an output positive electrode of the additional alternating current power source is sequentially connected with the electric conductors through wires, and the electric field is formed between the foundation pile body and the peripheral electric conductors. The basic element causing foundation pile corrosion is found through analysis and is erosion from ions with negative charges, the principle that charged ions move under the action of electric field power in the electric field is utilized, the impressed voltage is applied to the foundation pile, the electric field is formed within a certain range around the foundation pile through the impressed voltage, the ions with the negative charges in soil are promoted to get away from the pile body, and accordingly the purpose of integral foundation pile corrosion prevention is basically achieved, wherein the ions with the negative charges have a corrosion function on the foundation pile.

Description

technical field [0001] The invention belongs to the technical field of construction engineering and relates to a foundation pile anticorrosion technology, in particular to a foundation pile anticorrosion system based on the action of an electric field. Background technique [0002] Pile foundation is the most commonly used foundation form in my country's construction projects. Every year, millions of pile foundations are sunk into various foundations, many of which are corrosive. Corrosion seriously affects the service life of the pile foundation. Due to its large depth of penetration and small diameter, it will be more affected by corrosion than other building structures. Once the foundation pile is subjected to cl in the soil - , It is difficult to maintain due to the erosion of acid radical ions, and the maintenance cost is high; therefore, the corrosion resistance of foundation piles has received more and more attention, especially in long-line power transmission and t...

AI Technical Summary

Problems solved by technology

This method is simple in construction and low in cost, but it can only be used for anti-corrosion of prefabricated piles; since it is necessary to paint protective paint on the prefabricated piles first, and then sink the piles, the coating is subjected to the friction of the soil layer during the pile sinking process, which is extremely harmful. Cracks may occur, resulting in failure of the coating

(2) The cloth bag method uses anti-corrosion cloth bags to isolate the contact between the pile and the corrosive soil, but the construction process of this method is relatively complicated, and the cloth bags may be damaged during the construction process, and most of the cloth bags are made of geosynthetic materials, which are expensive to use and easy to use. Aging short service life

The principle of the electrochemical anticorrosion method is simple and practical. The disadvantage is that the electrochemical anticorrosion method makes the internal steel bar the cathode in the corrosion battery. It is a metal anti-corrosion method, which can only protect the steel bar in the pile body, and cannot achieve concrete anti-corrosion; and it is not convenient. Construction, especially the painting of conductive asphalt and conductive concrete is complicated, and it is difficult to achieve comprehensive and effective anti-corrosion performance

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