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1、十字板剪切试验TestingequipmentTestingequipmentincludes:1、pundinghost2、crossplatesplotTestingequipment:Testingequipmentincludes:1、pundinghost2、crossplatesplot3、purposetorsionsensor4、mesurementtorsioninstrument5、machinewhichapplytorsionandotherassistantequipmentPicture14-1principleofthevanesheartesta)crosspl
2、ateleafb)cylindersoilbodymadebycrossplateleafSpecificationofthecrossplate:thehighrectangletherectanglethedwarfingrectanglethediamondPlatewidthPlateheightPlatethicknessEdgeangleAxlediametreArearatioNowtherearetwokindsofthecrossplateshearinstrument:theopensteelringtypeandtheelectricmeasurementtype.1、T
3、heopensteelringcrossshearinginstrumentcanalsobecalledthemechanicaltypecrosstypeshearinginstrument.Itisacrossplateheadwhichuserotatingwormwheeltoinsertinthesoillayersandmeasuretheresistancemomentbyopensteelringwhichcanbeusedtocalculatetheshearstrengthofthesoil.2、Themaindifferencebetweentheelasticmeas
4、urementcrossshearinginstrumentandtheopensteelringonesisthattheyhavedifferentforcemeasuringequipment.theItuseresistancestraingauge、digitalforcemeasurementunitandelectronicpotentiometertomeasurethesheartorsionmoment.Ithasbeenprovedthattheelasticmeasurementcrossshearinginstrumentisportableflexibleandea
5、syoperationtheresultoftheexperimentisstabletoo.Themainpointoftheexperiment:1、Fortheopensteelringcrossshearinginstrument,thesteelringshouldbecheckedtwiceayear.2、Fortheelasticmeasurementcrossshearinginstrumentcheckingthesensor.Theapplicationofthevaneshearstrenthinengineering:1、Measuringthesensitivityo
6、fthesaturatedclay.2、Comfirmingthelocationoftheslidingsurfaceintheslopeorfoundation.3、Measuringthechangelawofthefoundationstrenth.
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