Method for repairing deformed end head plate of pipe pile

Abstract

The invention provides a method for repairing a deformed end head plate of a pipe pile. When the partial positive deviation of the deformation of the end part of the pipe pile is less than or equal to 0.5%D, an end surface is cleaned, and then a protuberant place is ground to be level; when the partial negative deviation of the deformation of the end part of the pipe pile is less than or equal to 0.5%D, the end surface is cleaned, then overlaying welding is performed on a concave place by electric welding, so that a slightly protuberant place is formed, and then the slightly protuberant place is ground to be level; when the partial positive deviation of the deformation of the end part of the pipe pile is more than 0.5%D and less than or equal to 1.0%D, after the end surface of the pipe pile is cleaned, a protuberant place is cut, and then the protuberant place is ground to be level; when the partial negative deviation of the deformation of the end part of the pipe pile is more than 0.5%D and less than or equal to 1.0%D, the end surface of the pipe pile is cleaned, overlaying welding is performed on a concave place by electric welding, so that a slightly protuberant place is formed, then the slightly protuberant place is ground to be level, and an end head plate is taken and welded to the end surface through seamless welding. Through the adoption of the method disclosed by the invention, the appearance quality of the pipe pile is ensured, and the economic benefits are improved.

Description

technical field [0001] The invention relates to a method for repairing after deformation of a pipe pile end plate. Background technique [0002] In the production process of concrete pipe piles, the oblique deformation of the pipe pile ends is a common problem. The national standard GB13476-2009 of "Pretensioned Prestressed Concrete Pipe Piles" lists the oblique deformation of the pipe pile ends in the dimensions of the appearance inspection items. The first place in the allowable deviation, the allowable deviation is ±0.5%D, the probability of deviation in the production process is relatively large, and the problem of tilting deformation at the end of the pipe pile is handled well. With the increasingly tense competition trend of the pipe pile market, it is less than 0.5% %D has been difficult to be accepted by users, so we realize that the repair of the inclined deformation of the pipe pile end plate is the need of the future development of the pipe pile situation. [000...

AI Technical Summary

Problems solved by technology

[0003] Usually, after the oblique deformation of the end of the pipe pile (ie, the end plate), the treatment method for the inclination deformation of the end of the pipe pile is less than ±0.5% D and nothing can be done, which cannot meet the requirements of customers, resulting in a backlog of pipe piles; greater than ±0.5% D is disposed of as a non-conforming product, which also causes economic losses in this area