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1、JournalofRockMechanicsandGeotechnicalEngineeringxxx(2015)1e8ContentslistsavailableatScienceDirectJournalofRockMechanicsandGeotechnicalEngineeringjournalhomepage:www.rockgeotech.orgFulllengtharticleAdistributedmeasurementmethodforin-situsoilmoisturecontentbyusingcarbon-fiberheatedcableaa,*a,*bcaDi
2、ngfengCao,BinShi,HonghuZhu,GuangqingWei,Shen-EnChen,JunfanYanaSchoolofEarthSciencesandEngineering,NanjingUniversity,Nanjing,210023,ChinabSuzhouNanZeeSensingTechnologyCo.,Ltd.,Suzhou,215123,ChinacDepartmentofCivilandEnvironmentalEngineering,UniversityofNorthCarolinaatCharlotte,NC28223,USAarticlei
3、nfoabstractArticlehistory:MoisturecontentisafundamentalphysicalindexthatquantifiessoilpropertyandiscloselyassociatedReceived15April2015withthehydrological,ecologicalandengineeringbehaviorsofsoil.Tomeasurein-situsoilmoistureReceivedinrevisedformcontents,adistributedmeasurementsystemforin-situsoilm
4、oisturecontent(SM-DTS)isintroduced.20August2015Thesystemisbasedoncarbon-fiberheatedcable(CFHC)technologythathasbeendevelopedtoenhanceAccepted24August2015themeasuringaccuracyofin-situsoilmoisturecontent.UsingCFHCtechnique,atemperaturecharac-Availableonlinexxxteristicvalue(Tt)canbedefinedfromtempera
5、tureetimecurves.ArelationshipamongTt,soilthermalimpedancecoefficientandsoilmoisturecontentisthenestablishedinlaboratory.ThefeasibilityoftheKeywords:SM-DTStechnologytoprovidedistributedmeasurementsofin-situsoilmoisturecontentisverifiedIn-situsoilmoisturecontentDistributedmeasurementthroughfieldtests
6、.TheresearchreportedhereinindicatesthattheproposedSM-DTSiscapableofCarbon-fiberheatedcable(CFHC)measuringin-situsoilmoisturecontentoverlongdistancesandlargeareas.Fiber-opticsensingÓ2015InstituteofRockandSoilMechanics,ChineseAcademyofSciences.ProductionandhostingbyElsevierB.V.Allrightsreserved.1.I
7、ntroductionadvantages,disadvantagesandlimitingscope.Alltheabove-mentionedmethods,however,doshareacommonweakness,Soilmoisturecontentisanimportantandfundamentalphysicalthattheyprovideonlypoint-modemeasurementsandcannotindextha
