A new true triaxial apparatus with pore fluid system for rock deformation under representative crustal stress conditions

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dc.catalogadorvdr
dc.contributor.authorStanton-Yonge, Ashley
dc.contributor.authorMitchell, Thomas M.
dc.contributor.authorMeredith, Philip G.
dc.contributor.authorHughes, Neil
dc.contributor.authorBoon, Steve
dc.contributor.authorBrowning, John
dc.contributor.authorHealy, David
dc.contributor.authorBowles, John
dc.date.accessioned2025-09-26T12:56:30Z
dc.date.available2025-09-26T12:56:30Z
dc.date.issued2025
dc.description.abstractWe have developed a new true triaxial apparatus for rock deformation, featuring six servo-controlled loading rams capable of applying maximum stresses of 220 MPa along the two horizontal axes and 400 MPa along the vertical axis to cubic rock samples of 50 mm side. Samples are introduced into a steel vessel, allowing rock specimens to be subjected to confining pressures of up to 60 MPa. Pore fluid lines connected to two pump intensifiers enable high-precision permeability measurements along all three principal stress directions. Experiments are conducted at room temperature. We present a suite of finite element method models implemented to determine the conditions and loading configuration that minimize the loading boundary effects during true triaxial loading. These observations are generic, and we expect they will contribute to the development of true triaxial loading systems generally. Finally, we validate our experimental configuration by presenting results on permeability measurements along the three axes on cubic samples of three types of well-studied rocks: Darley Dale sandstone, Crab Orchard sandstone, and Etna basalt.
dc.fechaingreso.objetodigitalNo aplica
dc.format.extent15 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1063/5.0274588
dc.identifier.eissn1089-7623
dc.identifier.urihttps://doi.org/10.1063/5.0274588
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/105781
dc.information.autorucEscuela de Ingeniería; Browning, John; 0000-0001-8022-6234; 1081089
dc.issue.numero9
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final095205-14
dc.pagina.inicio095205-1
dc.revistaReview of Scientific Instruments
dc.rightsacceso restringido
dc.subject.ddc500
dc.subject.deweyCienciases_ES
dc.subject.ods09 Industry, innovation and infrastructure
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleA new true triaxial apparatus with pore fluid system for rock deformation under representative crustal stress conditions
dc.typeartículo
dc.volumen96
sipa.codpersvinculados1081089
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