Near-surface test facility. Phase I. Geologic site characterization report
The report is a description of the geology and characterization of the rock mass of the area in which the Phase I qualification tests at the Near-Surface Test Facility (NSTF) are being performed. The NSTF is located on Gable Mountain within the Hanford Site near Richland, Washington. It is located in the entablature of the Pomona Member, an upper flow in the Columbia River Basalt Group, and is approximately 150 feet (47.5 meters) below the surface. Core logging from the instrument boreholes coupled with joint mapping, statistics, and other test data provided the basis for a detailed characterization of the 16-foot x 20-foot x 28-foot (5-meter x 6-meter x 9-meter) rock masses surrounding Full-Scale Heater Tests No. 1 and No. 2. The Pomona entablature contains three joint sets delineated by their degree of dip, each with apertures averaging 0.25 millimeter and having no preferred strike orientation. Although joint frequencies in the study area exceed 4 joints per foot (13 per meter), the rock-mass classification rating is good.
- Research Organization:
- Rockwell International Corp., Richland, WA (USA). Energy Systems Group
- DOE Contract Number:
- AC06-77RL01030
- OSTI ID:
- 6992810
- Report Number(s):
- RHO-BWI-ST-8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
54 ENVIRONMENTAL SCIENCES
BASALT
TEMPERATURE EFFECTS
HANFORD RESERVATION
GEOLOGY
RADIOACTIVE WASTE DISPOSAL
TEST FACILITIES
UNDERGROUND DISPOSAL
BOREHOLES
FRACTURES
HEATERS
MAPS
ROCKS
STATISTICS
STRESSES
WELL LOGGING
CAVITIES
FAILURES
IGNEOUS ROCKS
MANAGEMENT
MATHEMATICS
NATIONAL ORGANIZATIONS
US DOE
US ERDA
US ORGANIZATIONS
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
052002* - Nuclear Fuels- Waste Disposal & Storage
580100 - Geology & Hydrology- (-1989)
580300 - Mineralogy
Petrology
& Rock Mechanics- (-1989)
510500 - Environment
Terrestrial- Site Resource & Use Studies- (-1989)