廈門海相沉積軟土流變特性研究.pdf

1、廈門大學碩士學位論文廈門海相沉積軟土流變特性研究姓名：顧恒星申請學位級別：碩士專業(yè)：結構工程指導教師：胡華20090501AbstractGeotechnicalandgeologicaldisasters，suchasgeotechnicalslideinstabilitythesettlementinclinationoffoundationwereinitiatedeasilybytheacceleratingrheologyof

2、softrocksoilunderthedynamicloadingTherefore，itisofimportanttheoreticalandpracticalsignificancetesearchonthedynamicrheologicalpropertiesofsoftrock—soilandtherheologicaldynamicmechanismofburstingoutgeotechnicalandgeologica

3、ldisastersCombiningwiththeresearchsubjectofresearchontherheologicaldynamicmechanismofburstingoutseriousgeotechnicalandgeologicaldisastersfromnationalnaturefund，basedonthewidelyconsultingthehomeandaboardrelatedliteratures

4、，thispapermainlystudiesonthedynamicrheologicalpropertiesofthemarinesedimentarysoftsoilinXiamenunderdynamicloading，andstudiesontheformofcatastrophicfailureintherheologicalprocessofsoftsoilbythecatastrophetheorycombiningwi

5、ththedynamicrheologicaltestresultsofsoftsoil，themainresearchcontentsareasfollows：1Theanalysisandsummaryonmechanicalcharactersandmodeofactionofvariouscommondynamicloadinginnaturesupplytheloadingbasisforthestudyonthedynami

6、crheologicalpropertiesofsoftsoil2ThedynamictriaxialrheologicaltestisconductedwithrepresentativesampleofthemarinesedimentarysoftsoilinXiamenunderthecommondynamicloadingshowedsinefunctionsasexampleTheinfluencingcharacteris

7、ticofdifferentfrequencyandamplitudeofdynamicloadingforthedynamicaxialstrain，strainrate，strainacceleration，andthestressstrainrelationshiparestudiedbyanalyzingtestresults3Accordingtotheexistingrheologicalmodelandrheologica

8、lequation，theanalyticalexpressionsofsoftsoilstrain，strainrateandstrainaccelerationundertheloadingofsinearederivedandcalculatedbytheanalyticmethodofLaplacetransform，therheologicalpropertiesofsoftsoilarequalitativeanalyzed