Utah FORGE: Direct Shear Tests on Saturated Sierra White Granite Joints at Elevated Temperatures

Description

This dataset contains results from laboratory direct shear experiments performed on tension-induced fractures in Sierra White granite under saturated conditions at target temperatures of 50 C and 100 C. The data were collected using a custom water-pressurized chamber equipped with immersion heaters, thermocouples, and instrumentation for measuring shear and normal loads, displacements, pore pressure, and temperature. All tests were conducted at an effective normal stress of 6 MPa and a pore pressure of 1 MPa, with shear loading applied at a constant displacement rate. For the 50 C experiments, ultrasonic wave signals transmitted across the fracture were recorded simultaneously with mechanical measurements; wave data are included for multiple transducer configurations. Wave measurements were not obtained for the 100 C tests due to transducer limitations at elevated temperature. A PDF document accompanies the dataset and summarizes specimen preparation, modifications made to the test apparatus for elevated-temperature conditions, the testing procedure, and the resulting mechanical and geophysical observations.

Resources

Name Format Description Link
33 This PDF file summarizes the specimen preparation, test setup, procedure, and results of direct shear tests on saturated Sierra White granite joints at elevated temperatures. https://gdr.openei.org/files/1802/Purdue_5-2557_Shear_tests_saturation_elevated_temperature.pdf
53 This Excel sheet presents results from direct shear tests that explored the mechanical and geophysical behavior of saturated Sierra White granite joints at elevated temperatures. The file includes several sheets containing mechanical response data with clearly labeled units, as well as embedded metadata and figures. Additional sheets provide shear-displacement measurements collected at the microsecond scale for the 50 C tests. https://gdr.openei.org/files/1802/Purdue_5-2557_Shear_tests_saturation_elevated_temperature.xlsx

Tags

  • pore-pressure
  • shear-displacement
  • saturation
  • geophysics
  • direct-shear-test
  • granite
  • egs
  • geomechanics
  • shear-stress
  • utah-forge
  • s-wave
  • laboratory-data
  • ultrasonic-measurements
  • geophysical-response
  • saturated-fractures
  • lab-test
  • fractures
  • shear-strength
  • stimulation
  • sierra-white-granite
  • direct-shear
  • p-wave
  • elastic-wave-propagation
  • raw-data
  • effective-normal-stress
  • geothermal
  • rock-mechanics
  • energy

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