简介：Researchonin-channelsandminingisimperativeasitmayhaveasignificantimpactonchannelmorphology.Followingthisquesttoquantitativelycomprehendthephenomenon,experimentalstudiesweredonetoinvestigatethedynamiccharacteristicsofthemigrationofaminingpit.Theevaluationofthemigrationrateofaminingpitinaphysicalscalemodelhasfoundariseinthemigrationrateofthepit'supstreamedgewithincreasingdischarge.Awaveletanalysisappliedforanalyzingscale-dependentmigrationofthebedprofileofaminingpitalsorevealedsimilarfindings.Additionally,thewaveletanalysisexaminedthelength-scaledependentmigrationofaminingpitandadecreaseinthemigrationratehasbeenobservedwithanincreaseinthelengthscale.Theplanformofapit(length-to-widthratio)governstheerosionanddepositionprocessesaroundthepit.Bothphysicalandstatisticalapproachesshowanincreaseinthemigrationratewithanincreaseinthelength-to-widthratioofthepit.Anempiricalformulationhasbeendevelopedforcalculatingthemigrationrateoftheupstreamedgeofaminingpitbasedonpitgeometry(length-to-widthratio),averageflowvelocity,andcriticalshearstressofthebedmaterial.Theresultsalsoshowahigherbedloadtransportrateinthechannelsubjectedtominingascomparedtoaplainbedchannel.