Control method of bored concrete pile impact holing

Abstract

The invention discloses a control method of bored concrete pile impact holing and belongs to the technical field of bored concrete pile machines. A bored concrete pile comprises a percussion bit and a motor. The method includes the steps of firstly, selecting one point on the percussion bit, and recording the initial coordinates of the point on an X axis and a Z axis; secondly, detecting the current coordinates of the point on the X axis and the Z axis; thirdly, comparing the current coordinates with the initial coordinates to obtain varied coordinates, and comparing the varied coordinates with preset coordinate thresholds; fourthly, relating the current coordinates when the varied coordinates are larger than the preset coordinate thresholds to allow the current coordinates to be equal to the initial coordinates. The control method has the advantages that the impact positions of the percussion bit are detected in real time, the deviation coordinates of the percussion bit are regulated, and holes can be formed precisely.

Description

technical field [0001] The invention relates to the technical field of cast-in-situ pile machines, in particular to a method for controlling impact-forming holes of cast-in-place piles. Background technique [0002] With the continuous development of urban construction and high-speed railway construction, the theory and technology of piling foundation construction have been developed. The composite foundation technology of CFG piles (that is, cement fly ash gravel piles) has small settlement deformation, simple construction, low cost, and low load bearing capacity. With the advantages of strong force and wide application range, it has been widely used in foundation treatment and reinforcement of railways, highways, bridges, high-rise buildings, embankments and other roadbed projects in recent years. Due to the advantages of no vibration, no soil extrusion, low noise, and suitable for use in densely built urban areas during construction, cast-in-place piles are widely used in...

AI Technical Summary

Problems solved by technology

[0004] 1. As the impact time increases, the position of the impact drill is prone to shift, making it impossible to achieve fast and accurate hole formation;

[0005] 2. Judging the depth of the hole manually, the work intensity is high, and it is not accurate enough;

[0006] 3. Judging and adjusting the impact force of the impact drill manually, mistakes will inevitably occur

Images