A pile centering device and a pile centering process using the pile centering device

Abstract

The invention relates to a pile position alignment device and a pile position alignment process applying the pile position alignment device. The pile position alignment device comprises two inclined support rods arranged at the front end of a support frame of a three-axle piling machine, two outward moving positioning rods and two connecting modules; the two outward moving positioning rods are horizontally arranged in parallel; the back ends of the two outward moving positioning rods are fixed at the lower part of the front end surface of the support frame; the center lines of the two outwardmoving positioning rods are perpendicular to the drill rod center line on two sides of a three-axle drill rod; the center lines of the outward moving positioning rod and the drill rod on the same sideare positioned in the same vertical surface; the front ends of the two outward moving positioning rods are fixedly connected with the lower ends of the two inclined support rods; the upper ends of the two inclined support rods are fixed at the upper part of the front end surface of a support frame; the connecting modules comprise connecting ropes, and fixed pieces bound at the lower ends of the connecting ropes; the upper ends of the connecting ropes of the two connecting modules are fixed on the two outward moving positioning rods; and the distances from the two fixed places to the center lines of the drill rods on the same sides are equal. The pile position alignment device is convenient to operate and suitable for large-batch pile formation.

Description

technical field [0001] The invention relates to a pile centering device and a pile centering process using the pile centering device, belonging to the field of building construction. Background technique [0002] In recent years, with the rapid development of urban construction, there have been more and more deep foundation pit projects. The construction of triaxial cement-soil mixing pile is a mature construction technology, and this type of pile is often used as a water-stop curtain for deep foundation pit engineering. During the construction process of the fully hydraulic walking pile driver (hereinafter referred to as the three-axis machine) used in the three-axis cement-soil mixing pile, due to the improper alignment of the pile position, the pile position deviates, and the bite length between the piles does not meet the requirements. Design requirements, or the phenomenon of non-engagement between piles, and sometimes even the phenomenon of cement piles being missed o...

AI Technical Summary

Problems solved by technology

During the construction process of the fully hydraulic walking pile driver (hereinafter referred to as the three-axis machine) used in the three-axis cement-soil mixing pile, due to the improper alignment of the pile position, the pile position deviates, and the bite length between the piles does not meet the requirements. Design requirements, or the phenomenon of non-engagement between piles, and sometimes even the phenomenon of cement piles being missed or piles being repeatedly constructed

Using measuring instruments for pile position alignment, although the error is small, but in the process of alignment, it is time-consuming and laborious to use measuring instruments for alignment and correction

[0004] The Chinese invention patent with the publication number CN105804067A discloses a construction method for a steel cement-soil mixing pile column used for deep foundation pit support. During the construction process, the deep mixing pile machine is moved to the designated pile position, and the , leveling (leveling with a level); use theodolite or hanging hammer to control the verticality of the guide frame in two directions; use more equipment, and need instrument centering for a single operation. The operation of instrument centering is cumbersome, and it is not suitable for large-scale pile formation

And it is easy to cause the problem of missing piles and repeated piles in the process of mass pile formation

It is troublesome to remedy in the later stage, which seriously affects the progress of the project and the quality of construction

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