10000m~3 LNG儲罐基礎結(jié)構(gòu)的設計研究

10000m~3LNG儲罐基礎結(jié)構(gòu)的設計研究摘要Liquefiednaturalgas(LNG)isacleanenergysource,anditsusehasbecomeincreasinglypopularinrecentyears.LNGstorageiscriticalforthesuccessfuluseofthisenergysource.A10000m~3LNGstoragetankisacommontypeofLNGstoragesystem.Thedesignandconstructionofthefoundationforsuchastoragesystemisacrucialstepinensuringsuccessfuloperation.Thispaperfocusesonthedesignandstudyofthefoundationstructurefora10000m~3LNGstoragetank.Thepaperanalyzesthefactorsaffectingthedesignandconstructionofthefoundation,andpresentssolutionstoensurethestructuralintegrityandstabilityofthefoundation.ThestudyprovidesvaluableguidancefortheconstructionofLNGstoragetanks.關(guān)鍵詞:LNG儲罐；基礎結(jié)構(gòu)；設計；研究AbstractLiquefiednaturalgas(LNG)isanincreasinglypopularcleanenergysource,andthestorageofthisenergysourceiscriticalforitssuccessfuluse.The10000m~3LNGstoragetankisacommontypeofLNGstoragesystem,andthedesignandconstructionofitsfoundationisacrucialsteptoensureitssuccessfuloperation.Thispaperfocusesonthedesignandstudyofthefoundationstructurefora10000m~3LNGstoragetank.Thepaperanalyzesthefactorsaffectingthedesignandconstructionofthefoundation,andpresentssolutionstoensureitsstructuralintegrityandstability.ThestudyprovidesvaluableguidancefortheconstructionofLNGstoragetanks.Keywords:LNGstoragetank;foundationstructure;design;studyIntroductionWiththedevelopmentofmodernindustryandtheimprovementofpeople'slivingstandards,energyhasbecomeanessentialpartofhumanlife.Naturalgasisatypeofcleanandefficientenergysource,anditsliquefactioncansignificantlyreduceitsvolume,makingiteasiertostoreandtransport.Liquefiednaturalgas(LNG)hasbecomeanincreasinglyimportantenergysourceandiswidelyusedinvariousfieldssuchasindustry,transportation,andpowergeneration.Thestorageofliquefiednaturalgasiscriticalforitseffectiveuse,andthefoundationstructureofthestoragetanksplaysacrucialroleinensuringitssafeandstableoperation.The10000m~3LNGstoragetankisacommontypeofLNGstoragesystem,anditsfoundationstructuredesignisanimportantconsideration.Thispaperfocusesonthedesignandstudyofthefoundationstructurefora10000m~3LNGstoragetank.Thepaperexploresthefactorsaffectingthedesignandconstructionofthefoundation,andpresentssolutionstoensureitsstructuralintegrityandstability.FactorsAffectingtheFoundationStructureDesignThefoundationofanLNGstoragetankplaysacriticalroleinensuringitssafeoperation.Thedesignofthefoundationstructureisaffectedbyvariousfactors,includingthesoilconditions,seismicity,windloads,thermalloads,andoperationalrequirements.SoilConditionsThesoilconditionsofthesiteareasignificantfactoraffectingthefoundationdesign.Thesoilstabilityandbearingcapacityarecriticalfactorsthatdeterminetheloadingrequirementsofthefoundation.Ifthesoilconditionsarenotsuitable,thefoundationmaynotbestrongenoughtobeartheweightofthetankanditscontents.Thesoilconditionsmustbeinvestigatedbeforedesigningthefoundationstructure.Thesoilinvestigationshoulddeterminethetypeofsoilanditsproperties,suchasshearstrength,compressibility,elasticity,andpermeability.Thesoilinvestigationdatashouldbeusedtodesignafoundationthatcanwithstandtheexpectedloadingconditions.SeismicitySeismicityisanothersignificantfactorthataffectsthefoundationstructuredesign.Seismicactivitycancausesignificantgroundshakingandhorizontalforcesonthefoundationstructure.Thefoundationmustbedesignedtowithstandtheexpectedseismicloads,whichcanbeestimatedfromthesite'sseismicity.Theseismicdesignofthefoundationshouldconsiderfactorssuchasthemagnitudeofgroundacceleration,horizontalandverticalseismicloads,thefrequencyofseismicwaves,andthesitesoilcharacteristics.WindLoadsWindloadscancausesignificantforcesontheLNGstoragetankanditsfoundationstructure.Thewindforcescanbeestimatedfromthelocalwindspeedanddirection.Thefoundationdesignshouldconsiderwindloadstoensurethestabilityandsafetyofthetank.Factorssuchasthestructure'saerodynamics,windspeed,andthetank'sheightcanaffectwindloads.ThermalLoadsThestorageofliquefiednaturalgasresultsinsignificantthermaleffectsonthestoragetankanditsfoundationstructure.ThefoundationshouldbedesignedtowithstandthetemperaturechangesandthermalstressescausedbythecontainedLNG.Thethermaldesignofthefoundationshouldconsiderfactorssuchastheinsulationofthefoundation,thethermalconductivityofthesoil,andthetemperaturedistributionofthetankanditscontents.OperationalRequirementsTheoperationalrequirementsoftheLNGstoragetankalsoaffectfoundationdesign.Thefoundationmustbedesignedtoensurethesafeandstableoperationofthetank.Someoperationalrequirementsthatmayaffectthefoundationdesignincludethetank'sfillingandemptyingrates,thetank'soperationaltemperaturerange,andtherequiredmaintenanceandinspectionaccesstothetank.DesignofFoundationStructureThefoundationstructurefora10000m~3LNGstoragetankshouldbedesignedtoensureitsstabilityandsafety.Thefoundationmustbecapableofbearingtheweightofthetankanditscontents,withstandseismicandwindloads,andwithstandtemperaturechangesandthermalstressescausedbythecontents.Thefoundation'sdesignshouldfollowtherelevantstandardsandguidelines,suchastheAmericanSocietyofCivilEngineers(ASCE)standards,theAmericanConcreteInstitute(ACI)standards,andtheAmericanPetroleumInstitute(API)standards.Theseguidelinesprovidevaluableguidanceondesignrequirements,safetyfactors,andtestingprocedures.Thefoundationstructuredesignshouldconsiderthesite'ssoilconditions,seismicity,andwindloads.Thedesignshouldalsoconsiderthermalloadsandoperationalrequirements.Thefoundation'sdesignshouldbebasedonstructuralanalysisandconsiderationofthefoundation'sstiffness,dimensions,andmaterials.Thefoundationcanbeclassifiedintotwotypes:shallowfoundationanddeepfoundation.Ashallowfoundationissuitableforsoilconditionswithhighbearingcapacity,whereasadeepfoundationissuitableforsoilconditionswithlowbearingcapacity.Thefoundation'stypeshouldbedeterminedbasedonthesoilinvestigationresults.Thefoundationshouldbedesignedfollowingtherelevantcodesandstandardstoensurestructuralintegrityandstability.Thefoundationshouldbeabletowithstandtheexpectedloadsandbedesignedwith