Concepts in Prototype Testing for In Situ Geomechanical Investigations at Yucca Mountain

by B. A. Luke, Sandia Natl Lab, United States,
R. E. Finley, Sandia Natl Lab, United States,

Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1990


Geomechanical investigations comprise a significant portion of the site characterization program to be conducted at Yucca Mountain, the site of a proposed repository for nuclear waste. The investigations will include a number of large-scale experiments that will be conducted in an exploratory shaft facility at the site. A program of prototype testing has been initiated to ensure the success of these expensive and complex experiments. At present, the prototype testing program addresses three problems in rock mechanics: measurement of rock-mass strength, measurement of joint properties in situ, and measurement of rock-mass response to thermally-induced loading. Active areas of development in support of these tests include cutting deep, narrow slots in rock and fabricating high-pressure flatjacks.

Subject Headings: Field tests | Radioactive wastes | Waste sites | Load tests | Rock properties | Compression tests | Shear strength | Shear tests | Nevada | United States

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