Pipe pile verticality correcting method in construction process

Abstract

The invention relates to a pipe pile verticality correcting method in the construction process. The method is characterized by comprising the following steps that S1, soil in the direction deviating from the direction of dip of an inclined pipe pile is loosened to for a loosening area; S2, a kilometer drill is adopted to cooperate with a crane to gradually correct the inclined pipe pile; S3, the inclined pipe pile and poured soil in the lower portion of the pipe pile are cleaned; S4, a reinforcement cage is put into the inclined pipe pile, and the bottom of the reinforcement cage extends to the portion below the inclined pipe pile; S, concrete is poured into the inclined pipe pile, and an upper pipe pile and a lower pipe pile are connected; S6, soil in the loosening area is compacted. Accordingly, pile pulling does not need to be conducted on the inclined pipe pile, the phenomenon that the pipe pile is pulled broken is avoided, the rejection rate of the pipe pile is low, the cost is reduced, the construction period is short, after correcting is conducted, the integrality of the upper pipe pile and the lower pipe pile is high, the synergistic effect capacity is high, and the bearingcapacity is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of foundation construction in building construction, and in particular relates to a method for correcting the verticality of pipe piles in the construction process. Background technique [0002] Prestressed pipe piles have high bearing capacity of a single pile, 80% to 100% higher bearing capacity at the end of the pile than the undisturbed soil, wide selection range, convenient transportation, fast pile connection, pile length is not limited by construction machinery, and can be lengthened arbitrarily. It has the characteristics of body resistance, strong penetrating power, good crack resistance, and low cost. It is widely used in pile foundation design and construction. [0003] Prestressed pipe pile inclination is a common problem in the process of prestressed pipe pile driving. There are many reasons for the inclination of prestressed pipe piles. For example, the pile driver body (platform) is not level...

AI Technical Summary

Problems solved by technology

This remedial method has the following disadvantages: firstly, when the inclined prestressed pipe piles are pulled out, the prestressed pipe piles are easily pulled out or cracked, and these prestressed pipe piles are scrapped, resulting in waste; secondly, the single prestressed pipe piles The length generally does not exceed 10m. When the design pile length exceeds 10m, pile connection is required. During the construction of these prestressed pipe piles that require pile connection, the upper and lower prestressed pipe piles are connected by welding. During the pile pulling process, The welding point is damaged, and the upper and lower prestressed pipe piles are easy to separate. It is difficult to connect the prestressed pipe piles with the lower prestressed pipe piles. Even if they are connected, the upper and lower prestressed pipe piles cannot be connected Welding, the overall performance of the pile is reduced; finally, this method requires a relatively long construction period due to the need to pull out piles, fill holes and re-pile

Images