2. Experimentalequipmentandmethods
2.1.Experimentalequipment
The test was conducted using a high-temperaturetriaxial
loading testsystem(Fig. 1). Thetestingapparatusisusedtoapply
triaxial compressiononthesaltrocksampleunderhightempera-
ture usingacomputertocontroltheelectro-hydraulicservo
automaticloadingsystem.Thehydraulicstationprovidesthe
power,thecomputermeasurementandcontrolsystemareused
tocontroltheelectric-hydraulicservovalve,andthehostrunsthe
experimentunderthecontrolofthecomputer.Themaximum
axial forceusedwas400kN,thehighestconfining pressure
applied was30MPa,andthehighesttemperaturewas100 1C.
2.2. Experimentalmethod
The saltrocksamplesinthisexperimentwerecollectedfrom
depthsof1000matsitesintheHimalayas.Therockhasahigh
contentofNaCl(morethan96%),smallamountsofK2SO3, and
some mud.Toensurethesimilarityofthesaltrocksamplesas
much aspossible,sampleswithalmostthesamecontentof
impurity andwithoutcrackswereselected.Thesaltrocksamples
werecutintocircularcylinders50mmdiameter100mmlength,
and theevennessoftheheadfaceswascontrolledto0.02mm.
Appropriatemeasuresweretakentoprotectthesaltrockspeci-
mens fromfatiguedamageduringprocessing.Weassumethatall
the samplesweresubjectedtosimilarprocessingdamage;there-
fore, theeffectonthetestresultswouldbeminimal
2 . experimentalequipmentandmethods2.1.experimentalequipmentการ testwasconductedusingahigh temperaturetriaxialโหลด testsystem ( รูปที่ 1 ) thetestingapparatusisusedtoapplycompressiononthesaltrocksampleunderhightempera - แกนusingacomputertocontroltheelectro hydraulicservo turethehydraulicstationprovidesthe automaticloadingsystem .thecomputermeasurementandcontrolsystemareused พลังงานtocontroltheelectric hydraulicservovalve andthehostrunsthe ,experimentunderthecontrolofthecomputer ขนานแกน forceusedwas400kn thehighestconfining , ความดันใช้ was30mpa andthehighesttemperaturewas100 1C , .2.2 . experimentalmethodการ saltrocksamplesinthisexperimentwerecollectedfromtherockhasahigh depthsof1000matsitesinthehimalayas .contentofnacl ( morethan96 % ) smallamountsofk2so3 , และtoensurethesimilarityofthesaltrocksamplesas บางโคลนมากที่สุด sampleswithalmostthesamecontentof ,andwithoutcrackswereselected thesaltrocksamples บริสุทธิ์ .werecutintocircularcylinders50mmdiameter100mmlength ,และ theevennessoftheheadfaceswascontrolledto0.02mm .appropriatemeasuresweretakentoprotectthesaltrockspeci -บุรุษ weassumethatall fromfatiguedamageduringprocessing .การ samplesweresubjectedtosimilarprocessingdamage ; ที่นั่นtheeffectonthetestresultswouldbeminimal มาก่อน ,
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