华北理工环境工程原理教案第6章 沉降

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12II§6-16.1.10.110-200.01……u——=1122uACFPDD6.1.10CD——CD=f(Rep)36ppdV2pdAppdVAa63ppudReAP——(1)(2)(3)§6-2dPgdFppg364gdFpb36pdtdumFFbgF=Fg-Fb-FDu=0FD=0FDF=0utF=Fg-Fb-FD=0024662233tpDpppudCgdgdDpptCgdu3)(46.2.5ReP2CD=24/RePstokes2181pptgdu6.2.62ReP1036.0Re5.18pDCAllen6.0Re)(27.0ppptgdu6.2.7103ReP2105CD=0.44Newtonpptgdu)(74.16.2.81.————utRePReP2.CDRePututut6.2.5)CD53.KReP2Re10006.2.140m2700kg/m320201.205kg/m31.81×10-5Pa·s1P6.2.6262527009.8140100.1318181.8110PPtgdum/s66540100.131.205Re0.34621.8110PtPdu22ReDpC3632225440101.20527009.814Re8.31331.8110PPDpdgC12ReDpCRepRep0.3256Re0.31.81100.12540101.205ptpudm/sReptu6.2.6262527009.8140100.1318181.8110PPtgdum/s3K36322540109.811.20527006.24361.8110PPdgK262527009.8140100.1318181.8110PPtgdum/s7uidcuitViiqVbhulbhultV——m3qV——m3/sutttuhtttlbuhVuquhqVttVtV6.2.15dc6.2.15dc8dcP236,910§6-3mpdpr23261rdmrFPPcFb2361rdFPbFc—FbFDFdtduFDdu/dt=0Kcr23221()642cbDPPDPFFFFudrCddumdtDPPtcCrdu3)(42grKc29KcKc1.uirm2ui2/rmrm52500575m2.(1)dcNuiBdcN2rmN2218iPcmtudBruBtmiPPmcrudmrF/61232micPPmPtruddru181812222imuNrt210t=tDDB=D/4Ddc(2)diNuBdPic96.3.1D=400mmhi=D/2B=D/4N=51000m3/h0.6kg/m33.0×10-5Pa·s4500kg/m31000360013.90.20.1ViiquBhm/s=3.0×10-5Pa·sB=0.1mN=5P=4500kg/m3ui=13.9m/s6-3-95693100.15.210513.94500cdm5.2m30.1528mDBrDm2622255.210450013.90.2918183100.15cPitmduurm/s655.2100.290.6Re0.032310ctPdu11KcKc30003000Kc50000Kc50000P236,11§6-4Fe121213

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