Thermal and mechanical properties of Hanford basalts compilation and analysis

Technical Report · Wed Oct 01 04:00:00 EDT 1980

OSTI ID:6982552

Schmidt, B; Daly, W F; Bradley, S W; Squire, P R; Hulstrom, L C

Thermomechanical properties of Umtanum flow basalt are essential for further analyses and design of a nuclear waste repository at Hanford, now planned to be placed within the Umtanum flow. The properties of Pomona Member basalt are essential for the analysis of data from the Near-Surface Test Facility (NSTF) at Gable Mountain. This report presents a compilation and analysis of all thermomechanical laboratory data from Hanford basalts and a summary of data for use in analyses involving Umtanum or Pomona basalts. Umtanum flow basalt is essentially similar to basalts of other flows of the Grande Ronde Formation, of which the Umtanum Flow is a member. However, Umtanum flow basalt is lighter and weaker than the younger Pomona Member basalt. Correlations and analyses herein indicate the relationship between the two basalts and suggest how extrapolation from one to the other may be accomplished. Thermal tests are affected by details of testing procedure. Differences between Umtanum and Pomona thermal properties are relatively small. Both thermal and mechanical properties are affected by sampling procedures and by sample selection procedures. The shallower Pomona samples are inherently likely to be of better quality, and the deeper Umtanum samples are likely to underestimate parameters such as strength, modulus, or thermal expansion coefficient. Strength data for samples classified as intact show great scatter; Umtanum shows greater scatter than Pomona. Strength testing of Pomona was performed on samples that were essentially flawless. A large number of specimens for strength testing of Umtanum were picked from limited core lengths, resulting in the testing of many samples with flaws. The data examined herein apply to intact rocks and to joints only.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 6982552
• Report Number(s): RHO-BWI-C-90
• Country of Publication: United States
• Language: English

Related Subjects

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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
58 GEOSCIENCES
580300* -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
BASALT
COMPRESSION STRENGTH
DATA
DENSITY
EXPANSION
HANFORD RESERVATION
IGNEOUS ROCKS
INFORMATION
MANAGEMENT
MECHANICAL PROPERTIES
MECHANICS
NATIONAL ORGANIZATIONS
NUMERICAL DATA
PHYSICAL PROPERTIES
POROSITY
RADIOACTIVE WASTE DISPOSAL
ROCK MECHANICS
ROCKS
TENSILE PROPERTIES
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
UNDERGROUND DISPOSAL
US DOE
US ERDA
US ORGANIZATIONS
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT