Cast-in-place pile cross-hole CT detection method, system and equipment based on multi-wave integration

Through the multi-wave integrated cast-in pile cross-hole CT detection method, the traditional detection method is solved, and the problems of difficult separation of multi-physical interference in complex working conditions, low recognition accuracy of small-scale defects and insufficient quantification of three-dimensional defects in three-dimensional defects is achieved, and high-precision pile defect detection and three-dimensional spatial distribution quantization are achieved.

CN120507438APending Publication Date: 2025-08-19HUITONG ROAD & BRIDGE CONSTR GROUP +1
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Patent Information

Application Number
CN202510717315.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

In complex working conditions, traditional cast-in-place pile detection methods have problems such as difficulty in separation of multi-physical interference, low accuracy for small-scale defect recognition and insufficient quantification of three-dimensional defect spatial distribution.

Method used

The multi-wave integrated cast-injected pile cross-hole CT detection method is adopted. By laying multiple inspection holes around the cast-injected pile, the integrated probe is deployed, and ultrasonic, electromagnetic and seismic waves are excited in time. Combined with multi-physics data fusion, cross-wave normalization treatment, soil layer coupling correction and dynamic compensation of steel bars are carried out, a joint constraint objective function is constructed, the pile material parameters and defect distribution characteristics are inverted, and a three-dimensional structural model is generated.

Benefits of technology

It significantly improves the dimension and reliability of defect detection, solves the misjudgment and missed detection problems caused by environmental interference in traditional methods, and realizes the high-precision positioning of pile body defects and the quantification of three-dimensional spatial distribution.

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Abstract

The invention relates to the technical field of constructional engineering detection, and discloses a cast-in-place pile cross-hole CT detection method, system and equipment based on multi-wave integration, and the method comprises the steps: laying inspection holes, deploying a time-sharing excitation sensor, collecting multi-wave data, fusing the multi-wave data, correcting and compensating, and constructing a joint objective function to invert material parameters. A three-dimensional model is generated, defect space information is extracted, and hidden defect accurate detection is achieved; the system comprises a probe control module, a data acquisition module, a data processing module, a three-dimensional modeling module and a user interaction module. The device comprises an integrated probe device and a three-layer sensing structure from inside to outside. According to the method, anti-interference detection is achieved through multi-wave-type collaborative excitation and layered shielding probe design, and pile body defects are accurately positioned in combination with cross-wave-type data fusion processing and a self-adaptive inversion algorithm; defect space distribution is visually quantified based on dynamic threshold three-dimensional modeling, an integrated system adapts to a complex engineering environment, and the detection precision and efficiency of the cast-in-place pile are remarkably improved.
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