高壓應(yīng)力下石英砂顆粒破碎機理的試驗研究

1、武漢理工大學碩士學位論文高壓應(yīng)力下石英砂顆粒破碎機理的試驗研究姓名：黃文競申請學位級別：碩士專業(yè)：巖土工程指導教師：張季如20070501武漢理工大學碩士學位論文AbstractAtpresentthedomesticstudiesofparticlebreakagemainlycenterOilthemechanicalpropertyofdeadanddynamicsoilsunderthelowsUessHoweverliRlew

2、orkhasbeendoneunderthehi【ghstress，theparticlebreakagestudyonquartzsandismuchfewInordertoinvestigatethecompressionmechanismandmakesadetailedanalysisontheinfluenceofparticlebreakage，Theunidirectionalcompressiontestwascarri

3、edThisinvestigationandanalysisowHsrelativelyimportantmeaningondevelopingandimprovingthemechanicalpropertystudyofnaturalquartzsandguidingtherealisticengineeringdesignconstructionandsafetyinspectionandenhancingthestudyleve

4、lofparticlebreakageThemainworksarcshownasfollows：Firstlybasedonsummarizingthestudyhistoryofsandparticlebreakage，thepaperexpoundsthebasicphysicalpropertyandmineralcomponentsofthenaturalquartzsandsusedinthistest，designandd

5、evelopthetestdeviceaccordingtothetestobjectiveandrequirementandmakesadetailedexplanationonthetestequipmenttestsamplepreparationmethodtestprocedure，thepreparationstepsandpossibleproblemsinthetestThecompressionmodelandthec

6、ourseofcompressioncharacteristicarebeingsummarizedbrieflyBaseonthemassiveonedimensioncompressiontestsindifferentendingPressure，thecompressioncharacteristicofnaturalquartzsandisbeingstudiedTheoverwhelmingmajoritycompressi

7、onisplasticdeformationTheauthormakestheparticlesizeanalysistestOHthesamplesinalltests，usestherelativebreakageputforwardsbyHardintodescribethebreakagecharacteristicsunderthecompression，andinvestigatestherelativebreakagean

8、dparticlesize，particlecomposition，S仃esSlevel，andstress—strainrelationshipItisshownthattheparticlebreakagegrowsupwiththeincreasingofpressureandthediameterofparticle，betterconstitutionleadstolesserthebreakagerate，moreovert

9、hebreakagerateandplasticworkhasarepeatedcurverelationFinallytheauthorsummarizesthestudyfindingsandlookforwardtothestudydirectionofthequartzsandKeyWords：quartzsand，highpressure，one—dimensioncompressiontest，particlebreakag