Soil column porosity dynamic inversion system and method and sensor array structure

By deploying ultrasonic probes and resistivity probes using a Fibonacci array and combining them with a rock physics coupling model, the resolution and multiple solutions problems in soil column porosity monitoring were solved, achieving efficient and low-cost dynamic three-dimensional monitoring and improving the reliability and engineering applicability of the monitoring results.

CN121678488APending Publication Date: 2026-03-17TONGJI UNIV
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Patent Information

Application Number
CN202610134216.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-30
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing soil column porosity monitoring technologies suffer from problems such as low temporal resolution, insufficient spatial resolution, strong inversion ambiguity, and high sensor deployment costs under dynamic conditions, making it difficult to achieve real-time, high-resolution, and highly adaptable three-dimensional monitoring.

Method used

By deploying ultrasonic probes and resistivity probes using a Fibonacci array and combining them with a rock physics coupling model, a joint inversion objective function is constructed. The sensitivity and complementarity of acoustic and electrical data are used to reduce ambiguity, thereby achieving high-resolution, dynamic, and three-dimensional visualization monitoring.

Benefits of technology

It significantly improves the monitoring resolution and stability of the pore structure inside the soil column, reduces hardware costs and wiring complexity, and ensures the reliability and engineering usability of the monitoring results.

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Abstract

The invention discloses a soil column porosity dynamic inversion system and method and a sensor array structure, and belongs to the technical field of environmental soil tests. The system comprises a test soil column system; the acoustic monitoring module is used for acquiring ultrasonic travel time and amplitude information in the soil column; the resistivity monitoring module is used for acquiring resistivity information in the soil column; and the data processing host receives data of the acoustic monitoring module and the resistivity monitoring module, executes a joint inversion algorithm based on a rock physical coupling model, and dynamically inverts spatial distribution and time evolution of the three-dimensional porosity in the soil column by constructing a target function containing ultrasonic travel time / amplitude data and resistivity data at the same time. According to the invention, real-time, three-dimensional, high-resolution and high-adaptability soil column internal structure monitoring can be realized, and solid data support is provided for environmental rock and soil pollution migration mechanism research and restoration effect evaluation.
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