微震信号识别与地压灾害微震前兆规律分析-microseismic signal identification and analysis of microseismic precursor law of ground pressure disaster.docx

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微震信号识别与地压灾害微震前兆规律分析-microseismic signal identification and analysis of microseismic precursor law of ground pressure disaster.docx

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微震信号识别与地压灾害微震前兆规律分析-microseismic signal identification and analysis of microseismic precursor law of ground pressure disaster

Abstractspectrumangletoanalyzetheprecursorandthemainshocksignalwaveformcharacteristics,combinedwiththeanalysisofwaveletpacketenergydistributionofmicroseismprecursorandthemainshocksignalindistinctfrequencybands,andusingthecharacteristicofspectrumandofenergyinthefrequencybandofmicroseismforeshockandmainshocktoforecastgroundpressuredisaster,whichprovideanewwaytotheforecastofgroundpressuredisasters.Andthispaperhasestablishedagroundpressuredisasterforecastingmodelwhichisbasedonmulti-parametersaccordingtotheprecursorcharacteristicsofeachparameter.4.Thelinearweightedsummethodwasappliedforcalculation.Analytichierarchyprocessmethodalsoappliedfortheweighsofpredictionparameterscalculation.Thengroundpressuredisasterforecastsystemcontainingvariousparameterswasbuilt.Thepredicationofundergroundareawouldbeachievedbythismodelinsomeactivityspots.Theresulthasshownthatundergrounddisastercoulepredicationbyforecastingmodel.Keywords:microseismmonitoring,spectrumanalysis,precursor,forecasting.目录摘要.........................................................................................................................................IABSTRACT..............................................................................................................................II第一章绪论.............................................................................................................................11.1引言.............................................................................................................................11.2本课题国内外研究现状及存在问题..........................................................................21.2.1微震监测技术应用研究现状.........................................................................21.2.2微震监测信号识别研究现状..........................................................................31.2.3地压灾害微震前兆规律研究现状..................................................................41.2.4存在问题.........................................................................................................