Detection method for construction of electrical prospecting instrument in karst landform

High-density electrical exploration with data preprocessing and geologic model-based error correction addresses the challenges of existing geomechanical detection methods, providing a reliable and efficient means to identify karst geomechanical features with improved accuracy and reduced complexity.

CN119717031APending Publication Date: 2025-03-28中交建筑集团西南建设有限公司 +1
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Patent Information

Application Number
CN202411839585.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Existing methods for geomechanical construction detection, such as those using three-dimensional laser scanning and semantic segmentation models, face challenges including sensitivity to weather conditions, high data processing complexity, and motion errors, as well as the need for extensive and costly pixel-level annotation for accurate target recognition in diverse and complex terrain.

Method used

The proposed method employs high-density electrical exploration with a sequence of steps including data preprocessing, geoelectric section graph generation, visualization of resistivity images, and error correction using geologic models and algorithms like Copula functions to identify high and low resistivity regions, thereby providing a reliable and efficient detection of geomechanical features.

Benefits of technology

This approach simplifies the detection process, enhances accuracy, and reduces data processing complexity, offering a cost-effective and reliable method for identifying geomechanical features in complex terrain like karst regions with minimal equipment damage and high precision.

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Abstract

The invention discloses a karst landform construction detection method of an electrical prospecting instrument, which comprises the following steps of: arranging a high-density electrical prospecting probe in a to-be-detected area, and obtaining original data of the detected area; the method comprises the following steps: preprocessing original data of a detection area, and performing terrain correction and noisy point removal; a high-density electrical method data inversion method is adopted to obtain a geoelectric cross-section diagram, and an apparent resistivity imaging diagram is obtained according to the geoelectric cross-section diagram; obtaining a high-resistance area and a low-resistance area of the detection area according to the apparent resistivity imaging graph; and according to the apparent resistivity imaging graph, interpretation is carried out by combining geological information of the detection area, and error correction is carried out to obtain a landform construction detection interpretation graph. Through the scheme, the method has the advantages of simple logic, accuracy, reliability and the like, and has very high practical value and popularization value in the technical field of landform construction detection.
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