Device for pile foundation repairing and reinforcing and construction method adopting device

Abstract

The invention provides a device for pile foundation repairing and reinforcing. The device comprises a reinforcing sleeve which is arranged on a pile foundation in a sleeving manner and corresponds to a to-be-repaired position. A reinforcing clearance exists between the inner wall of the reinforcing sleeve and the outer wall of the pile foundation. The bottom of the reinforcing clearance is of a closed structure. The reinforcing clearance is used for containing a repairing material. When the device for pile foundation repairing and reinforcing is used, the repairing material is injected into the reinforcing clearance, the to-be-repaired position and the whole reinforcing clearance are filled with the repairing material, and therefore the to-be-repaired position is repaired; and by means of the repairing material arranged in the reinforcing clearance in a filling manner, the overall supporting strength of the pile foundation is effectively enhanced, the reinforcing effect is achieved, and the service life of the pile foundation is prolonged. Meanwhile, the device for pile foundation repairing and reinforcing is simple in overall structure and low in processing cost, and then the pile foundation repairing and reinforcing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of pile foundation repair and reinforcement, in particular to a device for pile foundation repair and reinforcement and a construction method using the device. Background technique [0002] Since the reform and opening up, my country has been building ports and water conservancy bridges for decades. There are tens of thousands of structures of different scales, different uses, and different construction periods. With the passage of time and my country's accession to the WTO, the frequency and requirements for the use of these structures have been continuously increased, which has intensified the contradiction between the aging and damage of the structure and the rapid development of productivity. One of the ways to solve the contradiction is to build new wharves, bridges, and improve port throughput, but this requires not only a lot of financial support, but also a lot of time. Therefore, while actively co...

AI Technical Summary

Problems solved by technology

At present, most of the special underwater curing materials are imported from abroad, which is expensive

And because the water conditions in China are different from those in foreign countries, the underwater visibility is generally poor. For example, the waters of Hangzhou Bay, the East China Sea, and the Yellow Sea have high sand content and turbid water quality, which is not conducive to repair materials and repair materials. Bonding of the matrix, and curing of the material itself

Secondly, the traditional underwater repair is only for the repair of cracks and damages, and cannot play the role of structural reinforcement and prolonging the service life of structures

For severely damaged pile foundations, if piles are re-drilled, the construction period, cost, and impact on existing production are not optimistic

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