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                              Researchprogressontheiceblocksstabilityinfrontoficecover

                                  WANGJun,SANGLiansheng,SONGFeihu,CHENGTiejie
                                          (HefeiUniversityofTechnology,Hefei 230009,China)


                  Abstract:Thestabilityoficeinthefrontoficecoveroricejamisanimportantbasisforthestudyoficejamaccu
                  mulation.Similarly ,itisanessentialpartofanymathematicalmodelpredictingorforecastingicejam accumula
                  tion.Areviewoftheclassicliteratureonsubmergenceoficeblocks ,bothdomesticallyandinternationally,has
                  beenconducted ,andthestudywaysonthecriticalconditionsforiceblocksubmergencehasbeenroughlycatego
                  rizedintothreeaspects:prototypeobservation,theoreticalanalysis,andexperimentalstudy.Whetherforengi
                  neeringapplicationsortheoreticalresearch,thecriticalFroudenumberiscommonlyusedtodetermineiceblock
                  submergence.Throughanalysisanddiscussionofthedeficienciesinexistingresearch ,thefollowingmainconclu
                  sionsandfutureresearchdirectionshavebeendrawn:thecriticalFroudenumberisinfluencedbymultiplefactors,
                  suchaswaterflow,meteorology,andtheconditionoftheiceblocksthemselves,thusexhibitingarangeofvalues
                  withspecificregionalcharacteristics.Theexistingresearchoniceblocksubmergencehaslargelyoverlookedthe
                  effectoficeblockwidth ,whichdirectlyaffectstheaccuraterepresentationofsubmergencemomentandanti - over
                  turningmoment.Thestudyofpressureanddistributionchangesonthebottomsurfaceoficeblocksduringsubmer
                  genceisofgreatimportance ,andthereisstillmuchroomforimprovementintheexistingresearch.
                  Keywords:submergence;criticalcondition;Froudenumber;pressurevariation;iceblock


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