A high outburst coal seam drilling interface outburst risk dynamic evaluation method and system

By integrating multi-source information and using a dynamic risk assessment model, the problems of limited information, crude data processing, and passive early warning response in the risk assessment of outbursts in high-risk coal seams have been solved. This has enabled real-time and accurate risk identification and early warning, improving the accuracy and reliability of risk assessment.

CN121599496BActive Publication Date: 2026-04-24CHINA UNIV OF MINING & TECH +1
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Patent Information

Application Number
CN202610122526.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-29
Publication Date
2026-04-24
Estimated Expiration
2046-01-29

AI Technical Summary

Technical Problem

Existing technologies for assessing the risk of coal seam outbursts through boreholes suffer from problems such as limited information collection, crude data processing, limited assessment models, and passive early warning responses. These issues lead to blind spots in risk identification, delayed assessments, and misjudgments, making it impossible to achieve real-time and accurate risk prevention and control.

Method used

A multi-source information fusion method is adopted to collect drilling parameters, geological environment and acoustic emission signals in real time. Through data processing and feature extraction, a joint feature vector is generated to construct a dynamic risk assessment model that integrates physical mechanisms and data-driven approaches. Combined with a sliding time window mechanism, real-time risk assessment is achieved and graded early warning signals are output.

Benefits of technology

It enables real-time, accurate, and proactive assessment of outburst risks at borehole interfaces in high-risk coal seams, eliminating blind spots in risk identification, reducing early warning response delays, and improving the accuracy and reliability of risk assessment.

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Abstract

The application discloses a high outburst coal seam drilling interface outburst risk dynamic evaluation method and system, relates to the high outburst coal seam drilling safety technical field. The method comprises the following steps: S1, real-time collection of multi-source information, generation of a multi-source original information dataset; S2, data unified pretreatment, generation of a standardized dataset; S3, multi-source feature fusion, generation of an interface mutation joint feature vector; S4, risk quantitative mapping: establishment of a quantitative mapping model; S5, dynamic risk evaluation: construction of a dynamic outburst risk evaluation model fusing physical mechanism constraints and data driving, real-time calculation of a system instability probability based on a sliding time window mechanism, and division of a dynamic risk grade according to the system instability probability; and S6, graded early warning output. The application realizes real-time, accurate and advanced evaluation of the high outburst coal seam drilling interface outburst risk, and significantly improves the drilling construction safety.
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