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                  Analysisofconsolidationinunsaturatedsoilsconsideringair - waterpermeabilityfunction

                                                                            1
                                                                1
                                1
                                              1
                                                                                                   2
                                                                                         1
                      CHENCong,ZHANGZhao,ZHANGTongling,ZHAOWei,LIUFengyin,QIJilin
                            (1.InstituteofGeotechnicalEngineering,Xi’anUniversityofTechnology,Xi’an 710048,China;
                  2.CollegeofCivilandTransportationEngineering,BeijingUniversityofCivilEngineeringandArchitecture,Beijing 100044,China)
                  Abstract:Thechangeofhydrogeologicalcharacteristicsduetothefillingofthereservoirofdamwillinducesignifi
                  cantfoundationsettlementsofsurroundingbuildings.Forthesakeofreasonablepredictionofthesettlement ,itis
                  necessarytoanalyzetheconsolidationbehaviorofunsaturatedsoils.Inresponse ,basedonthetheoryofmixture,
                  theair - waterpermeabilityfunctionandwaterretentionequationwerediscretelinearizedinthecoupledequationsof
                  seepage - deformation.Then ,theone - dimensionalconsolidationdifferentialequationsconsideringthevariationof
                  air - waterpermeabilitywereobtainedandanalyticallysolvedusingintegraltransformmethod.Finally,atypicalex
                  ampleofunsaturatedsoillayerinwhichairandwaterareinterconnectedwasgiventocompareamongtheprevious
                  analyticalsolutionwithoutconsideringthevariationofair - waterpermeability ,theproposedsolutionandthefinite
                  differencesolution.Theresultsshowthattheinfluenceofair - waterpermeabilityinteractionontheconsolidation
                  processofunsaturatedsoilisconsideredintheproposedanalyticalsolution,sothatthecalculateddissipationof
                  porewaterandairpressureandevolutionofsettlementbytheproposedsolutionareclosertothecorrespondingcal
                  culatedcurvebyfinitedifferencesolutionthantheprevioussolution.
                  Keywords:unsaturatedsoil;one - dimensionalconsolidationanalyticalsolution;air - waterpermeabilityfunction;
                  pore - waterpressure;pore - airpressure


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