第31卷第3期 霍丽娟,等:定水头法和降水头法测定黄土的饱和导水率259
[7] MUNOZ-CARPENAR,REGALADOCM,ALVAREZ-BEBEDIJ,eta.lFieldevaluationofthenewPhilip2Dunnepermeameter
formeasuringsaturatedhydraulicconductivity[J].SoilScience,2002,167:9-24.
[8] PHILIPJR.Approximateanalysisoffalling-headlinedboreholepermeameter[J].WaterResourcesResearch,1993,29:3763-3768.
[9] VANDERLINDENK,GABRIELSD,GIRADEZJV.EvaluationofinfiltrationmeasurementsunderolivetreesinCordoba[J].
SoilTillageResearch,1998,48:303-315.
[10] REGALADOCM,MUNOZ-CARPENAR.Estimatingthesaturatedhydraulicconductivityinaspatiallyvariablesoilwithdiffer-entpermeameters:astochasticKozeny-Carmanrelation[J].SoilTillageResearch,2004,77:189-202.
[11] ANKENYMD,AHMEDM,KASPARTC,eta.lSimplefieldmethoddeterminingunsaturatedhydraulicconductivity[J].Soil
ScienceSocietyofAmericaJourna,l1991,55:467-470.
[12] MESSINGI,JARVISNJ.Temporalvariationinthehydraulicconductivityofatilledclaysoilasmeasuredbytensioninfiltrom-eters[J].JournalofSoilScience,1993,44:11-24.
[13] MOHANTYBP,KANWARRS,parisonofsaturatedhydraulicconductivitymeasurementmethodsforagla-cialtillsoil[J].SoilScienceSocietyofAmericaJourna,l1994,58:672-677.
[14] 沈建.常水头与变水头注水试验的对比分析[J].江苏水利,2003(12):28-29.[15] DARCYH.LesfontainespubliquesdelavilledeDijon[M].Paris:VictorDalmont,1856.
DeterminationofSaturatedHydraulicConductivityofLoessSoilby
Constant-HeadMethodandFalling-HeadMethod
HUOL-ijuan,LIY-ife,iQianTian-wei
(InstituteofEnvironmentScience,Taiyuanuniversityofscienceandtechnology,Taiyuan030024,China)Abstract:Thispaperdeterminatessaturatedhydraulicconductivityofloesssoilbyconstan-theadmethodandfal-ling-headmethod.Theresultsshowthatthesaturatedhydraulicconductivitydeterminatebyconstan-theadmethodissmallerthanfalling-headmethod.Theoutflowrateisintherelativelagduetotherangeofphasesspacechangeinthesoilcolumnprobably.Andtheprecisionisloweratlaterstage,thevaluesfluctuategreatly.Constan-theadmeth-odisprobablyclosetopractice.
Keywords:constan-theadmethod,falling-headmethod,loess,saturatedhydraulicconductivity