基于水分轉(zhuǎn)化模型的淤泥固化機(jī)理研究

1、河海大學(xué)博士學(xué)位論文基于水分轉(zhuǎn)化模型的淤泥固化機(jī)理研究姓名：張春雷申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：巖土工程指導(dǎo)教師：朱偉20070619AbstractAbstractLargeamountofdredgedmaterials(DM)mayproduceindredgingprojects，solidificationmethodcantransferittousefulsoilresourceeffectivelyAstothedifficu

2、ltiesforquantitativelymechanismstudyanewmethodwasproposedtostudythesolidificationmechanismfromwastertransferangleTheparticularcontentincludes：(1)watertransferrulestudyduringcementtreatedDMThech啪cteris矗csofcementsolidific

3、ationWasanalyzedfirstlyawaterphasesclassificationmethodwasproposedtoclassifywater嬲freewaterboundwaterandhydrationwaterinsolidifieddredgedmaterialandcementhydrationresultantsThesoil—watersuctionpotentialindexpFvaluewaguse

4、dtOclassifysoilwaterwhenpFvaluehigherthan70，thewaterishydrationwaterWhenpFvalueliesbetween38and70，thewaterisboundwaterThroughthehydrationwatercontentandboundwatercontentdeterminationofdifferentcementandcuringtimeforthree

5、DMs，twowatertransfermodelswerebuilteachfordifferentcementcontentanddifferentcuringtimenlewatertransfermodelsshowcementreactsfirstlywithfreewaterthereactionCantransferfreewatertohydrationwaterandboundwaterincementhydratio

6、nresultantsThehydrationwaterincementhydrationresultantsmaybcusedtoindicatethecontentofcrystallizedhydrationresultants，whiletheboundwatermaybeusedtoindicatethecontentofgellikehydrationresultants(2)Mechanicalcharaeteristic

7、sstudyofsolidifiedDMAstothethreesolidifiedDMatdifferentcementcontentandcuringtime，unconfmedcompressivetests，iso—compressiontestsandconsolidatedundrained仃iaxialcompressiontestsweredoneThroughleststhechangeruleofunconfined

8、compressivestrengthdeformationfailuretype，effectivecohesiondeformationcoefficient，strugB】refailureStreSS，isocompressioncoefficientandvoidratiowiⅡlcementcontentandcuringtimeweremakeclearBasedontheanalsisofmechanicalbehavi

9、orsofsolidifiedDM，theconclusionsofsolidifiedDMstrengthcomesfrombinding，fillingandskeletonbracingactionsofcementhydrationresultantsWeledrown(3)CoelationanalysisofwatertransfercontentandmechanicalpropertiesThroughthequanti

10、tativeanalysisofhydrationwatercontentandboundwalefcontentincemedthydrationresultantswithmechanicalproperties，theresultsshowcrystallizedhydrationresultantsattributetostrengthcontinulywhilewhenthecontentofgellikehydrationr