Pulling-out method of underground piles by sleeving, vibrating and punching

Abstract

The invention relates to fundamental construction, in particular to a pulling-out method of underground piles. A pulling-out method of underground piles by sleeving, vibrating and punching is characterized by including the following steps: firstly, a sleeve is made, a long steel pipe is used as the sleeve, the external wall of the long steel pipe is provided with a water pipe and a ventilating pipe, one end head of the long steel pipe is in a sawtooth shape, and the internal wall of the long steel pipe is provided with a steel wire; secondly, the pile head position of an underground pile is determined, and soil is removed and backfilled; thirdly, a steel sleeve is vibrated and sunken, a caterpillar-band hoist is used for hanging a vibrating hammer to vibrate the sunken sleeve to enable the sleeve to sleeve the underground pile, and after the sleeve is positioned, the vibrating hammer is removed; fourthly, the pile is pulled out, after the sleeve sleeves the pile completely, the caterpillar-band hoist is used for contracting the steel wire to hoist; fifthly, the steel sleeve is pulled out by vibrating, the vibrating hammer is started up, and the caterpillar-band hoist is used for hoisting to pull out the steel sleeve with vibrating; and sixthly, a pile hole is levelly filled, and a disturbing area is processed. The invention can successfully pull out underground piles to remove the obstacle for construction.

Description

technical field [0001] The invention relates to foundation construction, in particular to a method for pulling out underground piles. Background technique [0002] In infrastructure construction, it is sometimes necessary to excavate some foundation pits, such as cyclone sedimentation tanks for water treatment facilities. According to different site conditions, sometimes some underground piles that affect the construction need to be pulled out. Because these piles are often embedded in the soil at a depth of 20 to 30 meters, and some of them have deviations in verticality, it is easy to break the underground piles if they are forcibly pulled out, and the rest are still buried below the ground and cannot be removed, which will affect the construction. Contents of the invention [0003] The present invention aims to solve the above-mentioned defects of the prior art, and provides a method for vibrating punching and pulling out of underground pile casings. The invention can...

AI Technical Summary

Problems solved by technology

Because these piles are often embedded in the soil at a depth of 20 to 30 meters, and some of them have deviations in verticality, it is easy to break the underground piles if they are pulled out forcibly, and the rest are still buried below the ground and cannot be removed, which will affect the construction.

Images