Testing and analyzing method for intelligent detection on integrity of foundation piles by using acoustic transmission method

Abstract

The invention discloses a testing and analyzing method for intelligent detection on integrity of a foundation piles by using an acoustic transmission method. The testing and analyzing method comprises the following steps: by taking acoustic transmission method detection data files as basis, calculating sound velocity, head wave amplitude, waveform distortion coefficients, frequency distortion coefficients and signal energy, performing acoustic parameter abnormal critical value calculation and abnormal classification, classifying measuring lines according to the classification result, classifying horizontal sections according to the classification of the measuring lines, furthermore, confirming abnormal sections of a pile body to form horizontal section chromatograms, and overlapping the horizontal section chromatograms so as to form three-dimensional chromatograms, namely, pile body defect distribution diagrams. The testing and analyzing method is based on acoustic detection technical principles and engineering detection practical experience, quantitative analysis on sound parameter calculation, judgment, classification, comprehensive analysis, graphic display and the like can be implemented, the workload and the difficulty of artificial analysis in the data analysis process can be reduced, the mal-judgment risk can be reduced, the information content of the detection result is enriched, the abnormal degree and the spatial distribution of the pile body defects can be visibly displayed in the pile body defect distribution diagrams, and the accuracy and the reliability of the detection result are improved.

Description

Technical field [0001] The invention relates to a method for analyzing and judging the integrity detection data of foundation piles, in particular to a method for analyzing and judging the integrity detection data of foundation piles by adopting a sound wave transmission method. Background technique [0002] At present, pile foundation structures are widely used in the construction field, and the integrity of the pile in the structure has a very important impact on the safety of the building. The acoustic transmission method of concrete cast-in-place piles is a widely used method in today's pile integrity detection. . The existing technical specifications for pile quality inspection include national industry standards, association standards and local technical standards. The following technical standards are representative: (1) The industry standard of the People’s Republic of China "Technical Specifications for Building Piles Inspection" (JGJ 106- 2014); (2) China Engineering C...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the technical problems that require testers to carry out manual comprehensive analysis in the later stage due to the many uncertain determination factors mentioned in the technical background, based on the principle of acoustic detection technology and many years of engineering. Supported by practical experience in testing, it provides an intelligent testing and analysis method for testing the integrity of foundation piles with the acoustic wave transmission method, quantitative analysis in the aspects of acoustic parameter calculation, judgment, classification, comprehensive analysis and graphic display, etc., reducing the analysis of testing data The workload and analysis difficulty of manual comprehensive analysis in the process reduces the risk of misjudgment, and further enriches the amount of information of the test results. The graphic display of the abnormal section of the pile body intuitively describes the abnormal degree and spatial position of the pile body defects, which improves Accuracy and reliability of test results

Images