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                          Areal - timerockburstpredictionmodelforQinlingTunnelbasedonthe
                                    characteristicparametersofmicroseismicmonitoring

                                                              2
                                                                           1,2
                                                   1
                                            HUJing,LIUShen,CHENZuyu
                               (1.ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing 100048,China;
                               2.InstituteofGeotechnicalEngineering,ZhejiangUniversity,Hangzhou 310058,China)
                  Abstract:Rockburstisoneofthemaindisastersintheconstructionofdeepearthengineering,andmicroseismic
                  monitoringisthemainmethodofshort - termpredictionforrockburst.Inordertosolvetheproblemthattheshort -
                  termpredictionofrockburstmainlydependsonexperience ,adatabasewasestablishedconsistingofthemicroseis
                  micmonitoringandtherockburstrecordeventsatQinlingTunnelofthewaterdiversionprojectfromHanjiangRiver
                  toWeiheRiver.Basedonallcharacteristicparametersduringaperiod,e.g.,energy,position,andmagnitudeof
                  themicroseismicevent ,areal - timepredictionmodelforrockburstwasestablishedusingtheconvolutionalneural
                  network.Besides,theinfluenceofworksurfacepositiononrockburstwasalsoconsidered.Accordingtothetrain
                  ing ,validationandtestresults,themodelstructure,selectionoflookbacktime,predictiontimeandtrainingep
                  ochwereoptimized.Themodelcouldreasonablydescribetheinfluenceofthedistributionfeatureofmicroseismic
                  andtheconstructionprogressontherockburstprobability.Basedonthetestresults ,themodelcanpredictthe
                  probabilityofrockburstinthenext48hourscontinuously.Theaccuracyofthepredictionismorethan80%,which
                  providesaneffectivetechnicalwayforreal - timepredictionofrockburst.
                  Keywords:microseismicmonitoring;rockburst;prediction;convolutionalneuralnetwork;characteristicparameter

                                                                                    (责任编辑:李 娜)

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