A two-dimensional visualization method, system, and medium for compaction effect of liquefiable foundation reinforcement.

By using ultrasonic tomography technology, combined with iterative algorithms and mesh subdivision, two-dimensional visualization of the reinforcement effect of liquefiable foundations was achieved, solving the discreteness problem of traditional one-dimensional point measurement and improving the accuracy and reliability of the evaluation.

CN122132494APending Publication Date: 2026-06-02SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Filing Date
2026-04-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing methods for evaluating the effectiveness of liquefiable foundation reinforcement mainly rely on one-dimensional point measurements, resulting in large dispersion of results, lack of spatial visualization capabilities, and difficulty in comprehensively reflecting the foundation reinforcement effect.

Method used

The ultrasonic tomography method is used to perform a sector scan on the foundation section through ultrasonic transducers. Combined with iterative initial value calculation, simulated annealing algorithm and mesh subdivision algorithm, the mesh wave velocity matrix is ​​obtained by inversion, the compaction coefficient is calculated and visualized in two dimensions.

Benefits of technology

It achieves two-dimensional continuous visualization of the foundation reinforcement effect, reduces the impact of soil spatial variability and randomness of point selection on the results, and improves the accuracy and reliability of the evaluation.

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Abstract

This invention discloses a two-dimensional visualization method, system, and medium for the compaction effect of liquefiable foundation reinforcement. The method first selects an in-situ ultrasonic CT test section and drills and embeds pipes at the corresponding locations. Then, ultrasonic transmitting and receiving transducers are placed inside the pipes, and acoustic travel time data for different paths are acquired using a sector scanning method. Next, based on grid division and combined with simulated annealing algorithm, the acoustic wave velocity of each grid is calculated, and a mean filtering method is used to reduce noise in the grid wave velocity. Finally, the ratio of the grid wave velocity in the reinforced area to the reference value of the grid wave velocity in the undisturbed area is defined as the compaction coefficient. Based on the compaction coefficient, the reinforced area is divided into uncompacted, weakly compacted, moderately compacted, and strongly compacted areas, achieving a two-dimensional visualized zonal evaluation of the liquefiable foundation reinforcement effect. This invention can more comprehensively and intuitively reflect the foundation reinforcement effect, improving the evaluation accuracy and reliability.
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