1、YI刪50分類號93舯3密級蟹丹編號學(xué)位論文THESISFORDEGREE坐塑佳旦工垣拯堪堡氫焦適整的數(shù)值籩真硒霾作者i蒯最申請學(xué)位級別：臻土專業(yè)名稱：王黝掌邏寧王程技芥艚LIAONINGTECHNICALUNIVERSITYAbstraetIncreasingwiththemunicipalsolidWllste，soeietywidcbecameextensiveattentiontothesafetyandenvironmenta

2、lproblemsoflandfillgasTherefore，LFGpollutionre$ou／∞utilizationhavebeenbecometlacfocusbothathomeandabroadLFGmovcmclrltthroughtherefuseisalargelycomplexkineticsprocess11地wholeprocessofLFGruinationandevolvementweresubjected

3、towaterLandfillisregardedastheunsaturatedzoneinthispaperandquantitationresearchofgaspressure，saturationandflowratewithwaterwaspresentedintheprocessofLFGexlractionItprovidestheoreticalevidenceandtechniqueSUppOltforLFGpoll

4、utioncontroland潞O呲eutilizationTheprimaryproduceincluding：(1)Onthebaseofunsaturatedseepageandbiodegradationtwodimensionsgaswatertwophasetransientnonline缸mathematicsmodelhasbeendevelopmentedforLFGmigration(2)Numericalschem

5、eofmodelisgivenbyusingGalerkinfiniteelementmethodandthereliabilityofnonlineararithmeticisvalidated，(3)Thenumericalsimulationresultsshow：1Themoistureincreaseswiththedecreasinggaseffectivepermeabilitywhichgasmigrationpathi

6、scompressedleadingtogasfluxdownDifferenceofwatersaturationequaltoO175，telTOl“ofannualgasfluxachieve8760m3觸Therefore，donotignorethewatersaturationinLFGevaluation2LFGemissiontoalmosphereWaSpreventedwithfinalcoverattheSamet

7、imeinteriorsystemgaspressureincreaseswithtlaedecreasingd掣吐‘3GasflowrategradualtydecayswhentimeToelapsedsincelandfillw雒capped，islonger111eflowrate(45m3hlr)forTo。20yearsis70％oftl扭t(65m3／hr)forTo=10yearThegaspressureforTo=2

8、0yearsisalso70％oftl詛tfor乃=10yearnIisindicatesm缸thegaspressureisimlxIrtanttoflowrate4Thecomparisonofcomputation瓤devaluationdatasofgaswellproductionWaSp囂吼塒onJimKoulandfilltheresultsofvariationw量lhelapscdyearis￡mastomotie，a