简介：Inthispaper,themathematicaltheoryoffuzzyprobabilityisusedfortheproblemsofrockmassmechanicsduetoexcavation,especiallymining.Amathematicalmodelisdevelopedforthemovementanddeformationofrockmassonthebasisoftheassumptionthatthedisplacementanddeformationofrockmassisafuzzyevent,andfromthismodeltheoreticalformulasarederivedforcalculatingthedisplacementofrockmassduetoexcavationThetheoriesofboththetwo-andthree-dimensionalproblemsaredevelopedandappliedtotheanalysisofengineeringproblemsinexcavation.Theagreementofthetheoreticalresultswiththefieldmeasurementsshowsthatourmodelissatisfactoryandtheformulaeobtainedarevalidandthuscanbeeffectivelyusedforpredictingthedisplacementsanddeformationsandthesafetyevaluationofthebuildingsonthegroundsurface.
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