Sandia Energy > Capabilities > Facilities > Geomechanics Laboratory Making predictions of rock mass response and fluid flow through rock masses requires quantitative models of the governing deformation and fracture processes. Building these models, and performing analytic and numerical design calculations from the models requires information about specific rock properties. The Geomechanics Laboratory enables you to measure rock properties under a wide range of simulated service conditions up to very high pressures and complex load paths. Staff at the laboratory have also developed independent experiments that evaluate model generalizations, for example: how to generalize two-dimensional information to a three-dimensional model. They also have experiments that determine the accuracy of design procedures in the laboratory. Supported by combinations of laboratory work and in situ observations, the Geomechanics Laboratory emphasizes the following activities: Characterization of natural fracture systemsIdentification and modeling of rock deformation and failure processesLaboratory determinations of thermo-mechanical and transport properties of competent rock and natural fractures, including studies of coupled effectsExtrapolation of laboratory measurements to field conditionsIn situ stress measurements and evaluation of in situ boundary conditionsLaboratory and bench-scale validation studies These capabilities make this laboratory useful for any of the following applications: Underground constructionMiningOil and gas production/reservoir managementHydrocarbon and compressed air storageHazardous waste disposalFluid flow and contaminant transportLaboratory and bench-scale evaluation of geo-technical design procedures The following tools allow the Geomechanics Laboratory to measure rock properties under a wide range of simulated service conditions up to very high pressures and complex load paths: 0.1-5 MN servo controlled testing machines1 MN/10 kN-M normal load/torsion testing machine70 MPa -1 GPa pressure vessels (15 cm maximum cavity diameter)True tri-axial testing capabilityHopkinson/Kolsky bar for intermediate rate testing (2.5 cm sample diameter)Tri-axial creep apparatus (10-10 s-1 strain-rate resolution)Elevated temperature testing to 400°CPermeability apparatus with hydrostatic and deviatory loading capabilitiesThermal properties (thermal expansion and conductivity) testing up to 300°CNon-destructive testing facilities including real-time acoustic emissions location systemLaser surface profiler (10 Am resolution)Petrographic laboratorySpecialty machining and sample preparation facilities Availability This fully operational facility is available for characterizing the following materials: RocksGranular geomaterialsConcretesSome ceramicsFoamsComposite materials To make arrangements to use the Geomechanics Laboratory, contact the user liaison. Contact Publications Ben Cook firstname.lastname@example.org Browse all Sandia publications or search by author below: Louise Criscenti Google Scholar list of publications. Jeffery Greathouse Google Scholar list of publications. Jason Heath Research Gate list of publications. Tuan Ho Google Scholar list of publications. Anastasia Ilgen Google Scholar list of publications. Kevin Leung Research Gate list of publications. Susan Rempe Google Scholar list of publications. Jessica Rimsza Google Scholar list of publications. Guangping Xu Google Scholar list of publications.