Creep of 50-mm diameter specimens of dome salt from Avery Island, Louisiana

Technical Report · Fri Aug 01 00:00:00 EDT 1980

OSTI ID:6549317

Hansen, F D; Mellegard, K D

This report describes triaxial compression creep experiments performed on domal salt from Avery Island, Louisiana. The ranges of axial stress difference ..delta..sigma, confining pressure sigma2, and temperature T studies covered those expected in a nuclear waste repository: 6.9 less than or equal to ..delta..sigma less than or equal to 31.0 MPa, 0 less than or equal to sigma2 less than or equal to 20.7 MPa, 24/sup 0/C less than or equal to T less than or equal to 200/sup 0/C. All specimens exhibited transient creep, and the strain data were fitted to a constitutive law of the form epsilon = kt/sup n/..delta..sigma/sup m/T/sup p/. The duration of some experiments was long enough for the specimen to reach steady-state. An activation energy for the rate-controlling deformation mechanism was calculated using data from these experiments. Finally, creep of Avery Island and Jefferson Island domal salts were compared and found to be similar.

• Research Organization: RE/SPEC, Inc., Rapid City, SD (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6549317
• Report Number(s): ONWI-104
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
RADIOACTIVE WASTE DISPOSAL
SALT DEPOSITS
CREEP
STRESS ANALYSIS
COMPARATIVE EVALUATIONS
DRILL CORES
EXPERIMENTAL DATA
HIGH PRESSURE
HIGH TEMPERATURE
LOUISIANA
MEDIUM PRESSURE
MEDIUM TEMPERATURE
PRESSURE DEPENDENCE
ROCK MECHANICS
STRAINS
STRESSES
TEMPERATURE EFFECTS
DATA
GEOLOGIC DEPOSITS
INFORMATION
MANAGEMENT
MECHANICAL PROPERTIES
MECHANICS
NORTH AMERICA
NUMERICAL DATA
SOUTHWEST REGION
USA
WASTE DISPOSAL
WASTE MANAGEMENT
580300* - Mineralogy
Petrology
& Rock Mechanics- (-1989)
052002 - Nuclear Fuels- Waste Disposal & Storage