简介：Thestabilityofasubmarinepipelineontheseabedconcernstheflow-pipe-soilcoupling,withinfluentialfactorsrelatedtotheoceanwavesand/orcurrents,thepipelineandthesurroundingsoils.Aflow-pipe-soilcouplingsystemgenerallyhasvariousinstabilitymodes,includingtheverticalandlateralon-bottominstabilities,thetunnel-erosionoftheunderlyingsoilandthesubsequentvortex-inducedvibrations(VIVs)offree-spanningpipelines.Thispaperreviewstherecentadvancesoftheslip-linefieldsolutionstothebearingcapacity,theflow-pipe-soilcouplingmechanismandthepredictionforthelateralinstability,themulti-physicalcouplinganalysisofthetunnel-erosion,andthecouplingmechanicsbetweentheVIVsandthelocalscour.Itisrevealedthatthemechanismcompetitionalwaysexistsamongvariousinstabilitymodes,e.g.,thecompetitionbetweenthelateral-instabilityandthetunnel-erosion.Finally,theprospectsandscientificchallengesforpredictingtheinstabilityofalong-distancesubmarinepipelinearediscussedinthecontextofthedeep-wateroilandgasexploitations.

简介：Thispaperstudieswaterandsolutetransportinsoil.ItmainlydealswiththeadsorptionbehaviorofheavymetalCd++insoilatdifferentPHvaluesandthedynamiccharac-tersofadsorptionprocessinunsaturatedstate.Throughtheoreticalanalysisandexperimentalre-search,theadsorptionisothermandtheequationsofdynamicadsorptioninsaturatedandunsatu-ratedstatesareproposed.

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