國際課件2土質(zhì)學與土力學soil mechanics lecture3lyh

SoilSoilInstructor:LiuYanhua( E-mail：:SchoolofHighway,Chang’anUniversityLectureLecturePhysicalPropertiesandEngineeringClassificationofsoilConsistency稠度）ofcohesiveRelativedensity（相對密度）ofcohesionlessPhysicalindicesofDensity（密度， 質(zhì)量 PhysicalindicesofDensity（密度，1.3Physicalindicesofmm1.3Physicalindicesof Densitybottlemethod m1.3Physicalindicesm質(zhì)量體積質(zhì)量體積1.3PhysicalindicesofPhysicalindicesofDrydensity(干密度 anddryunitweight（干重度mmPhysicalindicesof 質(zhì)量 體積mm

ms+Vv·

=Ws

w= V

g=r·mPhysicalm質(zhì)量體積=質(zhì)量體積=V=rsat-g'=Ws-Vsw=ms·g-Vsw·g= PhysicalindicesofTherelationshipoffourdensityparametersmmm質(zhì)量體積=Vv質(zhì)量體積=Vv1.3.5CalculatedphysicalindexesmmPhysicalindicesof ）dConsistency稠度）ofcohesiveConsistency稠度）ofcohesive O

Ws縮限含水率Wp塑限含水率WLww Stateof

Solidor Limitsof Consistency稠度）ofcohesiveLiquid sticlimit1.Determinationof sticLiquid sticlimit1.Determinationof stic sticlimitcombineddeviceLiquid sticlimitDeterminationof stic sticlimitcombineddeviceConsistency稠度）ofcohesive1.4.2Liquid sticlimit oftheliquid sticlimitcombineddevice（Cone-typeliquidlimitdevice）Casagrandemethod(卡 Liquid sticlimit2.Determinationoftheliquid sticlimitcombineddeviceLiquid sticlimit2.DeterminationoftheliquidBowl-typeliquidlimitdevice（碟式液限儀法Consistency稠度）ofcohesivesticityIp=wL-SiltySilty《Codefordesignofbuildingfoundation Consistency稠度）ofcohesiveLiquidL =w- LwL- Solidorsemisolid(堅硬狀態(tài)IL=0 stic可塑狀態(tài)

0.000.25Rigid 0.751.00 0.751.00 0.25-

Viscousliquid( 態(tài)degreeofdensityRelativedensity相對密度）degreeofdensityHowHowtoemin=DryunitweightVoidratioePorosityn rainsizeorcontentsofemin=Relativedensity相對密度）ofcohesionless質(zhì)量 體積mm

—voidratioofcohesionlesssoilin loosest—voidratioofcohesionlesssoilinthedensest cevoidRelativedensity相對密度）ofcohesionlessDegreesDegreesorstatesofdensity

loose疏松的denseorpacted(密實的Relativedensity相對密度）ofcohesionlessstandardpenetrationtest，SPT（標準貫入試驗Relativedensity相對密度）ofcohesionlessconedynam