Foundation pile defect quantitative evaluation method and system based on in-hole imaging

Abstract

The invention provides a foundation pile defect quantitative evaluation method based on in-hole imaging, and the method comprises the following steps: carrying out the panoramic surrounding shooting of the hole wall of an inner hole of a foundation pile, so as to obtain a hole wall image of the inner hole of the whole foundation pile; performing image recognition on the hole wall image to determine the position of each defective sub-image of the hole wall image on the hole wall image; according to the position of each defective sub-image of the hole wall image on the hole wall image, determining the position of each defective part of the foundation pile; and calculating the proportion of the total area of each sub-image with defects to the total area of the hole wall image so as to realize quantitative evaluation of each defect part of the foundation pile and further realize quantitative evaluation of the integrity of the foundation pile. The foundation pile defect quantitative evaluation method provided by the invention is visual, simple and convenient, the specific position of the foundation pile defect part can be accurately detected, and the operability is high; and the invention further provides a foundation pile defect quantitative evaluation system based on in-hole imaging.

Description

technical field [0001] The invention relates to the technical field of foundation pile detection, in particular to a quantitative evaluation method and system for foundation pile defects based on in-hole imaging. Background technique [0002] The foundation pile is a very important part of the basic construction, and the quality of the foundation pile directly affects the success or failure of the entire infrastructure project. With the vigorous development of our country's basic construction, the foundation pile technology that is closely related to it is also constantly innovating and developing. Correspondingly, the detection technology of foundation piles is also more perfect. [0003] The integrity detection of the foundation pile is mainly to detect the integrity of the interior of the pile body. Among the existing foundation pile detection technologies, the relatively common and representative ones are the low-strain reflection wave detection method and the acoustic ...

AI Technical Summary

Problems solved by technology

The low-strain reflected wave detection method has at least the following disadvantages: 1. When there are multiple defects in the pile body, only the first serious defect can be detected, and subsequent possible defects will be covered up; The defects of the pile body are detected; that is, the low-strain reflected wave detection method cannot well detect the integrity of the foundation pile body

The acoustic transmission method has at least the following disadvantages: the acoustic tube is prone to clogging during the pouring of concrete, which makes it impossible to continue the integrity inspection of the pile body of the pre-embedded acoustic tube, which is not conducive to the quality control of the foundation pile

[0006] It can be seen from the above that the above-mentioned low-strain reflection wave detection method and the acoustic wave transmission method have certain deficiencies, so that the integrity of the foundation pile body cannot be well detected; and the above-mentioned low-strain reflection wave detection method and the acoustic wave transmission method cannot detect Quantitative evaluation of the size of the detected defects brings difficulties to the subsequent reinforcement of foundation pile defects

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