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Title: Geotechnical Issues in Total System Performance Assessments of Yucca Mountain

Abstract

A Total System Performance Assessment (TSPA) of Yucca Mountain consists of integrated sub-models and analyses of natural and engineered systems. Examples of subsystem models include unsaturated-zone flow and transport, seepage into drifts, coupled thermal hydrologic processes, transport through the engineered barrier system, and saturated-zone flow and transport. The TSPA evaluates the interaction of important processes among these subsystems, and it determines the impact of these processes on the overall performance measures (e.g., dose rate to humans). This paper summarizes the evaluation, abstraction, and combination of these subsystem models in a TSPA calculation, and it provides background on the individual TSPA subsystem components that are most directly impacted by geotechnical issues. The potential impact that geologic features, events, and processes have on the overall performance is presented, and an evaluation of the sensitivity of TSPA calculations to these issues is also provided.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15194
Report Number(s):
SAND99-3201J
TRN: US0204579
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Journal Name:
International Journal of Rock Mechanics and Mining Sciences
Additional Journal Information:
Other Information: Submitted to International Journal of Rock Mechanics and Mining Sciences; PBD: 21 Dec 1999
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; DOSE RATES; EVALUATION; PERFORMANCE; SENSITIVITY; TRANSPORT; YUCCA MOUNTAIN

Citation Formats

HO,CLIFFORD K., HOUSEWORTH,JIM, and WILSON,MICHAEL L. Geotechnical Issues in Total System Performance Assessments of Yucca Mountain. United States: N. p., 1999. Web.
HO,CLIFFORD K., HOUSEWORTH,JIM, & WILSON,MICHAEL L. Geotechnical Issues in Total System Performance Assessments of Yucca Mountain. United States.
HO,CLIFFORD K., HOUSEWORTH,JIM, and WILSON,MICHAEL L. Tue . "Geotechnical Issues in Total System Performance Assessments of Yucca Mountain". United States. https://www.osti.gov/servlets/purl/15194.
@article{osti_15194,
title = {Geotechnical Issues in Total System Performance Assessments of Yucca Mountain},
author = {HO,CLIFFORD K. and HOUSEWORTH,JIM and WILSON,MICHAEL L.},
abstractNote = {A Total System Performance Assessment (TSPA) of Yucca Mountain consists of integrated sub-models and analyses of natural and engineered systems. Examples of subsystem models include unsaturated-zone flow and transport, seepage into drifts, coupled thermal hydrologic processes, transport through the engineered barrier system, and saturated-zone flow and transport. The TSPA evaluates the interaction of important processes among these subsystems, and it determines the impact of these processes on the overall performance measures (e.g., dose rate to humans). This paper summarizes the evaluation, abstraction, and combination of these subsystem models in a TSPA calculation, and it provides background on the individual TSPA subsystem components that are most directly impacted by geotechnical issues. The potential impact that geologic features, events, and processes have on the overall performance is presented, and an evaluation of the sensitivity of TSPA calculations to these issues is also provided.},
doi = {},
journal = {International Journal of Rock Mechanics and Mining Sciences},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {12}
}