Nonequilibrium fracture-matrix flow during episodic infiltration events in Yucca Mountain

Conference · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:139506

Buscheck, T A; Nitao, J J ^[1]

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1. Lawrence Livermore National Lab., NM (United States)

This report examines the impact of nonequilibrium fracture-matrix flow on episodic infiltration events in Yucca Mountain. For both the FMMM and ECM calculations, a ponded boundary condition is maintained at the repository horizon until the liquid front has broken through to the water table. The relative impact of matrix imbibition is examined for the five major hydrostratigraphic units between the repository horizon and the water table. The question of what sequencing of infiltration events gives rise to episodic behavior versus behavior which may be time-aggregated is also addressed. The implications of nonequilibrium fracture-matrix flow on radionuclide transport are briefly discussed. 19 refs., 7 figs., 5 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Regulatory Applications; Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses; Arizona Univ., Tucson, AZ (United States). Dept. of Hydrology and Water Resources
• OSTI ID: 139506
• Report Number(s): NUREG/CP--0040; CONF-9101106--; ON: TI93016989; CNN: Contract W-7405-Eng-48
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
54 ENVIRONMENTAL SCIENCES
ENVIRONMENTAL TRANSPORT
FLUID FLOW
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE MANAGEMENT
RADIONUCLIDE MIGRATION
WATER TABLES
YUCCA MOUNTAIN
Yucca Mountain Project