一种基于声发射b值的岩石破坏预警方法及装置

By collecting data using an acoustic emission probe, the target amplitude interval and probe are determined, and the b-value sequence is obtained using an analysis model. This solves the problem of inconsistent determination of acoustic emission b-values ​​and improves the accuracy of rock damage early warning.

CN120651969BActive Publication Date: 2026-07-17CCTEG COAL MINING RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCTEG COAL MINING RES INST
Filing Date
2025-06-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the determination of acoustic emission b-values ​​is affected by a variety of factors, and the problem of unifying the b-values ​​obtained from different factors remains unsolved, which reduces the accuracy of rock damage early warning.

Method used

By collecting the number and time of acoustic emission events using at least one acoustic emission probe, the target amplitude interval and target acoustic emission probe are determined. The b-value sequence under different parameter conditions is determined using a target analysis model to provide early warning of rock damage.

Benefits of technology

This improves the scientific rigor of determining the b-value and its evolutionary trend during the loading process, thereby enhancing the accuracy of rock failure early warning.

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Abstract

本发明公开了基于声发射b值的岩石破坏预警方法及装置,该方法包括:响应于至少一个声发射探头布设后,对岩石样本进行控制加载并同时监测至少一个声发射探头,记录岩石样本从开始加载至发生破坏时各声发射探头采集到的声发射事件数量和时间;基于至少一个声发射探头采集到的声发射事件数量,确定目标幅值间隔和目标声发射探头;基于目标幅值间隔和目标声发射探头对应采集到的声发射事件数量和时间,确定不同参数条件下对应的b值序列;基于不同参数条件下对应的b值序列,利用目标分析模型确定目标b值序列,并基于目标b值序列进行岩石破坏预警。本发明提高了b值的确定及b值随加载过程的演化趋势的科学性,提高了岩石破坏预警的准确率。
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