Use of large-scale transient stresses and a coupled adjoint-sensitivity/kriging approach to calibrate a groundwater-flow model at the WIPP (Waste Isolation Pilot Plant) site

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:7067621

Beauheim, R L ^[1]; LaVenue, A M ^[2]

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1. Sandia National Labs., Albuquerque, NM (USA)
2. INTERA, Inc., Albuquerque, NM (USA)

A coupled adjoint-sensitivity/kriging approach was used to calibrate a groundwater-flow model to 10 years of human-induced transient hydraulic stresses at the WIPP site in New Mexico, USA. Transmissivity data obtained from local-scale hydraulic tests were first kriged to define an initial transmissivity distribution. Steady-state model calibration was then performed employing adjoint-sensitivity techniques to identify regions where transmissivity changes would improve the model fit to the observed steady-state heads. Subsequent transient calibration to large-scale hydraulic stresses created by shaft construction and long-term pumping tests aided in the identification of smaller scale features not detected during steady-state calibration. This transient calibration resulted in a much more reliable and defendable model for use in performance-assessment calculations. 7 refs., 6 figs.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7067621
• Report Number(s): SAND-89-2373C; CONF-9005117-4; ON: DE90009307
• Resource Relation: Conference: GEOVAL 90, Stockholm (Sweden), 14-17 May 1990
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
FLOW MODELS
CALIBRATION
GROUND WATER
ALPHA-BEARING WASTES
DOLOMITE
FLOW STRESS
FLUID FLOW
HYDRAULICS
KRIGING
LOW-LEVEL RADIOACTIVE WASTES
STEADY-STATE CONDITIONS
UNDERGROUND DISPOSAL
WIPP
ALKALINE EARTH METAL COMPOUNDS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
FLUID MECHANICS
FUNCTIONAL MODELS
HYDROGEN COMPOUNDS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MANAGEMENT
MATERIALS
MATHEMATICAL MODELS
MATHEMATICS
MECHANICS
MINERALS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
OXYGEN COMPOUNDS
PILOT PLANTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
STATISTICS
STRESSES
UNDERGROUND FACILITIES
US DOE
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
540330* - Environment
Aquatic- Radioactive Materials Monitoring & Transport- (1990-)
052002 - Nuclear Fuels- Waste Disposal & Storage