Prestressed post-inserted composite anchor cable uplift pile and preparation method thereof

Abstract

The invention belongs to the field of underground construction, and particularly relates to a prestressed post-inserted composite anchor cable uplift pile and a preparation method thereof. The upliftpile comprises an uplift pile composite reinforcement cage, a composite anchor cable and a filler, wherein the uplift pile composite reinforcement cage comprises an uplift pile cage outer wall and anuplift pile cage inner wall; the composite anchor cable is arranged between the uplift pile cage outer wall and the uplift pile cage inner wall, and consists of an isolation body and an uplift anchorcable arranged in the isolation body; the isolation body isolates a corrosive from the uplift anchor cable; and a steel plate anchoring end is arranged at the lowermost side, and is connected with theisolation body. The uplift pile has the advantages of good overall performance, high bearing capacity, no mud pollution, low manufacturing cost, corrosion resistance and high construction speed; andthe upper part of a pile body is always located in a pressed state to prevent cracks.

Description

Technical field[0001]The invention belongs to the field of underground construction, and specifically relates to a pre-stressed post-insertion composite anchor-cable pull-out pile and a preparation method thereof.Background technique[0002]There are four main engineering situations that require the use of uplift piles: the groundwater level of the project is high, and the upper part of the project is thinner or the weight of the superstructure cannot offset the buoyancy of the groundwater. At this time, under the action of the buoyancy of the groundwater, the engineering structure part Or the whole body will be pulled up, causing the building to move upward. This situation often occurs in the basement of buildings, underground parking lots and so on. At this time, it is necessary to design uplift piles to avoid these situations.[0003]The engineering structure may be subjected to huge horizontal loads during construction or later use, such as bridge abutments, inclined piles of retain...

AI Technical Summary

Problems solved by technology

[0013] In order to solve the problem that the above-mentioned steel strands are easily scattered or disturbed by the vibrating rod during the vibration process of the rear-inserted steel cage and cannot be lowered to the bottom, resulting in construction accidents, the mud retaining wall reduces the bearing capacity and pollutes the environment, and the steel strands are easily corroded, especially due to groundwater entering the concrete. In order to solve the problems of corrosion caused by tiny cracks caused by tensile stress, the present invention provides a prestressed post-inserted composite anchor cable with good overall performance, high bearing capacity, no mud pollution, low cost, corrosion resistance, and fast construction speed. Pile and its preparation method

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