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U.S. Department of Energy
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Compression and extension data for dome salt from West Hackberry, Louisiana

Technical Report ·
DOI:https://doi.org/10.2172/7090187· OSTI ID:7090187
Results of six quasi-static tests and four creep experiments are described in terms of standard quasi-static material properties such as uniaxial compressive strength, strain-to-failure, secant moduli, etc., and in terms of two known creep formulations. The creep formulations consist of a combined primary/secondary creep model and a purely transient creep model. All results are compared with published data for rock salt from the Jefferson Island dome and for bedded salt from the Wellington and Salado formations. They are consistent with results from these three sites suggesting that West Hackberry rock salt can be described by means of constitutive relations which are now available or currently under development. Comparative data for triaxial compression and triaxial extension also indicate that these models can be applied to predict the shear deformation of rock salt under general stress states but that modifications might be needed to predict rock salt fracture.
Research Organization:
Sandia National Labs., Albuquerque, NM (USA)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
7090187
Report Number(s):
SAND-79-0668
Country of Publication:
United States
Language:
English