Coal rock ejection mode analysis method and device and electronic equipment

By analyzing the surface displacement and strain changes of coal rock samples during pressure loading, combined with the preset discriminant model, the catapult pattern of coal rock samples was determined, and the problem of incomplete capture of coal rock catapult phenomenon in the existing technology was solved, and more accurate and standardized identification of coal rock catapult pattern was achieved.

CN119715145AActive Publication Date: 2025-03-28CHINA COAL RES INST
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Patent Information

Application Number
CN202510157494.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2025-03-28
Estimated Expiration
2045-02-13

AI Technical Summary

Technical Problem

The prior art has limitations in capturing the entire process and details of coal rock ejection phenomenon, and when identifying coal rock ejection patterns, it depends on subjective experience and judgment, which affects the accuracy and consistency of the results.

Method used

By obtaining the surface displacement change information, strain change information and ejection time stage of the coal rock sample during pressure loading, the crack opening and staggering degree of movement are obtained, and the catapult mode of the coal rock sample, including the catapult type and power source, is determined based on the preset discriminant model.

Benefits of technology

The scientific judgment of the catapult behavior of coal rock samples has been achieved, the subjectivity and uncertainty of manual judgment has been reduced, the identification of coal rock catapult pattern has been made more standardized and precise, the understanding of the mechanical properties of coal rock has been deepened, and technical support has been provided for safety warning and disaster prevention and control.

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Abstract

The invention provides a coal rock ejection mode analysis method, a coal rock ejection mode analysis device and electronic equipment. The coal rock ejection mode analysis method comprises the following steps: acquiring surface displacement change information and strain change information of a coal rock sample in a pressure loading process and an ejection time stage of an ejection behavior of the coal rock sample; according to the surface displacement change information, the opening degree and the dislocation degree of the fracture on the coal rock sample in the ejection time stage are obtained; according to the strain change information, deformation stress parameters at the fracture monitoring points on the coal rock sample are obtained; according to a preset discrimination model, the opening degree and the dislocation degree of the fracture in the ejection time stage and the deformation stress parameters at the fracture monitoring points are calculated, the ejection mode of the coal rock sample is obtained, and the ejection mode comprises an ejection type and an ejection power source. According to the method, scientific judgment on the ejection behavior of the coal rock sample can be realized, the subjectivity and uncertainty of manual judgment are remarkably reduced, and the identification of the coal rock ejection mode is more standardized and accurate.
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