Methods, systems, and fluorescent spraying devices for detecting and evaluating inclined roadways in open-pit mines

By combining fluorescent material spraying and three-dimensional laser scanning, the problems of large errors, high costs, and long cycles in the detection of inclined roadways in open-pit mines have been solved, achieving rapid and accurate quantitative evaluation and reducing errors and costs.

CN121559624BActive Publication Date: 2026-06-30CCTEG CHINA COAL RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCTEG CHINA COAL RES INST
Filing Date
2026-01-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies are insufficient for accurately detecting and quantitatively evaluating inclined roadways in open-pit mines, and traditional methods suffer from problems such as large errors, high costs, and long cycles.

Method used

By combining fluorescent material spraying with optical observation and three-dimensional laser scanning, connectivity is determined using a fluorescent mixed spraying device and borehole television, and roadway profile area data is obtained. Based on the coefficient of variation, an adaptive volume calculation model is selected to achieve rapid qualitative and accurate quantitative evaluation.

Benefits of technology

It reduced the volume calculation error to within 5%, shortened the exploration cycle by 30%, reduced costs by 40%, and improved the accuracy and reliability of the evaluation.

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Abstract

This invention discloses a method, system, and fluorescent mixed-spray device for detecting and evaluating inclined roadways in open-pit mines. The method includes: performing fluorescent material spraying and optical observation in at least two boreholes along the target exploration line; determining the spatial connectivity of roadway cavities between boreholes based on the observation results; acquiring roadway profile area data perpendicular to the exploration line at each borehole location for roadway sections determined to be connected; calculating a quantitative index characterizing the degree of profile morphology change based on the profile area data; and adaptively selecting a corresponding volume calculation model to calculate the volume of the roadway cavity based on a comparison of the quantitative index with a preset threshold. This invention combines rapid qualitative assessment of spatial connectivity based on fluorescence with accurate adaptive volume calculation based on morphological variation coefficients, using a single integrated technical process to simultaneously solve the problems of high exploration costs and low calculation accuracy in traditional methods.
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Citation Information

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