DOI: 10.11799/ce202602015
Study on the response characteristics of microseismic monitoring for surrounding rock failure in deep coal mine roadways
WANG Wei
MA Weijie
CHEN Mingming
WANG Rui
LI Nan
ZHOU Zhiyue
ZUO Yapeng
LIU Jifa
QIU Jincheng
ZHU Ziyang
Abstract：During the driving process of deep coal roadways,high in-situ stress conditions readily induce disasters such as coal bursts,roof falls,and rib spalling.Accurate positioning and monitoring serve as the prerequisite and foundation for disaster prevention and control.Taking a deep driving coal roadway in Zhaozhuang Coal Mine as the engineering background,a high-sensitivity,high-frequency microseismic positioning and monitoring system was established.To address the challenge of identifying complex and weak microseismic signals induced by coal roadway driving,a denoising algorithm integrating unsupervised deep learning and an attention mechanism was introduced,achieving adaptive suppression of broadband noise.Based on an improved extreme learning machine(ELM)intelligent algorithm,accurate and efficient identification of weak microseismic signals was realized.Time-frequency characteristics of three typical microseismic waveforms,including low-energy events,stress anomalies,and coal bursts,were analyzed in depth using the Hilbert-Huang transform(HHT)time-frequency analysis method.On this basis,source location and microseismic monitoring response patterns for coal burst events induced by stress anomalies were investigated.The coupling relationship between the microseismic monitoring response characteristics of"precursor rise-peak mutation-attenuation stabilization"and the dynamic evolution process of surrounding rock"stress accumulation-coal burst occurrence-stress release"during driving was revealed.
Keywords：coal roadway drivingstress anomalymicroseismic waveform characteristicscoal burst location monitoringresponse characteristics
Publication Date：2026-02-20
Online Publishing Date：2026-03-23(First online date of this platform, not the publication date of the document)
Pages：7( 119-125 )