固体废弃物压缩特性及填埋场沉降研究

StudyoncompressibilityandsettlementoflandfillwithmunicipalsolidwasteX705A10004548(2005)01011605(1963)Sowers[1]LandvaandClark[2]MohammedAetal[3][4][5][6][7]YenandScanlon[8]Ediletal[9]HoeILing[10][11]3(1)6kg10kg19cm34cm2cm1/3(2)60%~80%350mm1600kPaBHMSW-203520351(3)1.11750mm5min50mm0.1mm30minMSWFig.1ThenewMSWcompressionapparatus(1)1902Table1ThepercentagecompositionofMSW%/%17.14.26.70.67.656.9/%0.51.20.30.44.5Table2ThespecificdensityofMSW/kg·m-32.151.151.40.661.522.55/kg·m-32.57.82.81.01.5(2)1)1(s0−+=ρωρωde∑∑=iiimdmdss2kgVmm0−=ρ0mmV(3)a)4.2222.234400kPa45d2~4294.6%91%324h6h24h4btat+=ε∞→tultεε→b1ult=ε4ultεFig.2TherelationshipbetweensvstundersinglestepofloadingFig.3Therelationshipbetweends/dtvstundersinglestepofloading1182005Fig.4Therelationshipbetweent/εvstundersinglestepofloadingb)4.33.6743.025501002004008001600kPa24h565t/t650kPaε/tFig.5Therelationshipbetweent/εvstwithdifferentporosityFig.6Therelationshipbetweenultεvsplnwithdifferentporosity(4)a)24h1.51d60d92.37%90d90%1.594.6%91%4.0324h24h1d24hb)6h1h24h80%24h90%76h6h6h6hFig.7Therelationshipbetweens/tvstc)1624h24h24h1h01/62/63/61h1h123456h6h610141824h25kPa120m1t/m31200kPa25501002004008001600kPa30min(50mm)1.119(1)a)b)c)(2)8Fig.8Sectionofmunicipalsolidwastey0sy0VVV+=α1αVyoVsζy0yVV=ζ2yV89Fig.9Simplifysectionofmunicipalsolidwastecheheeeh0001)1(1+−++−=∆αζ3ehh∆iihiS∆iiiiheheeeS0001)1(1+−++−=∆αζ4iei∑∆==niiSS15n(3)αζaαy00s0y00)1(dAdAdA+−=α6y0dsd0Abζ)1(AA−=δζ7001AA−=δA[12]1989919914600m313a0.4m0.8m120m(1)127m5m[13]sd=2.50sd′=2.200A=35%yd=1.80427.0=α538.0=δ5.40=e5119m52.18m52.18m(2)533101202005tSTable3Thesettlementofclosedlandfill10∞→t∞StSt)exp(tktSSS−−=∞∞80→t0t→S∞→t∞→SSt)exp(1ktU−−=∞=USSt9Uk0.100.14Fig.10Therelationshipbetweensvstinclosedlandfill(1)1624h24h6h(2)50kPa(3)αζe(4)(9)(5)[1]SowersGF.Settlementofwastedisposalfills[A].Proceedingof8thintconf.Soilmechandfoundengrg[C].Moscowpart21973,207210.[2]LandvaAO,ClarkJI.GeotechnicalengineeringandRefuselandfills[A].Proceedingof6thnationalconferenceonwastemanagementinCanada[C].Vancouver,1984.[3]GabrMA,ValeroSN.GeotechnicalpropertiesofMunicipalsolidwaste[J].Geotechnicaltestingjournal,1995,18(2):241251.[4]MSWJ1998,20(5)16[5]J2002,24(3)281285.[6]D2002.[7][J]2001,29(B12):131134[8]BingCYen,BrianScanlon.Sanitarylandfillsettlementrates[J].JournalofGeotechnicalandGeoenvironmentalEngineering.1975,101(5)475487.[9]EdilTBRanguette,etal.SettlementofMunicipalRefuse[A].GeotechnicsofWasteFills-theoryandpracticeASTMSTP1070[C].Philadelphia1990,225239.[10]HoeILing,etal.EstimationofMunicipalSolidWasteLandfillSettlement[J].JournalofGeotechnicalandGeoenvironmentalEngineering,1998,124(1)2128.[11]ZhaoYoucai,ChenZhugen.Monitoringandlong-termpredictionofrefusecompositionsandsettlementinlarge-scalelandfill[J].WasteManagementandResearch2001,160176.[12]J2002,23(1)6062[13]J2000,22(1)3539t/a0510152025303540St/m020.1426.9230.7933.3335.1836.6337.0337.28