Thermomechanical modeling and data analysis for heating experiments at Stripa, Sweden
Comparisons were made between predicted and measured thermomechanical displacements and stresses for in situ heating experiments at a depth of 340 m in a granite body at Stripa, Sweden. We found that taking into account the temperature dependence of the thermal expansion coefficient and the mechanical properties of the rock substantially improves the agreement between theory and experiment. In general, the displacements calculated using laboratory values of rock properties agree better with field data than in the case of stresses. This may be due to the difference between in situ and laboratory rock modulus. The significance of temperature-dependent rock properties and strength to thermomechanical failure is also discussed.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5277877
- Report Number(s):
- LBL-10193(Rev.); CONF-800507-7(Rev.)
- Country of Publication:
- United States
- Language:
- English
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Rock properties and their effect on thermally induced displacements and stresses
Calculated thermally induced displacements and stresses for heater experiments at Stripa, Sweden. Linear thermoelastic models using constant material properties
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
EUROPE
EXPANSION
GRANITES
IGNEOUS ROCKS
MANAGEMENT
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
PLUTONIC ROCKS
RADIOACTIVE WASTE DISPOSAL
ROCK MECHANICS
ROCKS
SCANDINAVIA
STRESSES
SWEDEN
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
UNDERGROUND DISPOSAL
WASTE DISPOSAL
WASTE MANAGEMENT
WESTERN EUROPE