skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Near Field Environment Process Model Report

Abstract

Waste emplacement and activities associated with construction of a repository system potentially will change environmental conditions within the repository system. These environmental changes principally result from heat generated by the decay of the radioactive waste, which elevates temperatures within the repository system. Elevated temperatures affect distribution of water, increase kinetic rates of geochemical processes, and cause stresses to change in magnitude and orientation from the stresses resulting from the overlying rock and from underground construction activities. The recognition of this evolving environment has been reflected in activities, studies and discussions generally associated with what has been termed the Near-Field Environment (NFE). The NFE interacts directly with waste packages and engineered barriers as well as potentially changing the fluid composition and flow conditions within the mountain. As such, the NFE defines the environment for assessing the performance of a potential Monitored Geologic Repository at Yucca Mountain, Nevada. The NFe evolves over time, and therefore is not amenable to direct characterization or measurement in the ambient system. Analysis or assessment of the NFE must rely upon projections based on tests and models that encompass the long-term processes of the evolution of this environment. This NFE Process Model Report (PMR) describes the analysesmore » and modeling based on current understanding of the evolution of the near-field within the rock mass extending outward from the drift wall.« less

Authors:
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, NV (United States)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
837130
Report Number(s):
TDR-NBS-MD-000001, REV 00, ICN 03
MOL.20001121.0041, DC 27027; TRN: US0502319
DOE Contract Number:  
AC08-91RW00134
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 14 Nov 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CONSTRUCTION; DECAY; DISTRIBUTION; KINETICS; ORIENTATION; PERFORMANCE; POSITIONING; RADIOACTIVE WASTES; SIMULATION; STRESSES; WASTES; WATER; YUCCA MOUNTAIN

Citation Formats

Wagner, R A. Near Field Environment Process Model Report. United States: N. p., 2000. Web. doi:10.2172/837130.
Wagner, R A. Near Field Environment Process Model Report. United States. https://doi.org/10.2172/837130
Wagner, R A. Tue . "Near Field Environment Process Model Report". United States. https://doi.org/10.2172/837130. https://www.osti.gov/servlets/purl/837130.
@article{osti_837130,
title = {Near Field Environment Process Model Report},
author = {Wagner, R A},
abstractNote = {Waste emplacement and activities associated with construction of a repository system potentially will change environmental conditions within the repository system. These environmental changes principally result from heat generated by the decay of the radioactive waste, which elevates temperatures within the repository system. Elevated temperatures affect distribution of water, increase kinetic rates of geochemical processes, and cause stresses to change in magnitude and orientation from the stresses resulting from the overlying rock and from underground construction activities. The recognition of this evolving environment has been reflected in activities, studies and discussions generally associated with what has been termed the Near-Field Environment (NFE). The NFE interacts directly with waste packages and engineered barriers as well as potentially changing the fluid composition and flow conditions within the mountain. As such, the NFE defines the environment for assessing the performance of a potential Monitored Geologic Repository at Yucca Mountain, Nevada. The NFe evolves over time, and therefore is not amenable to direct characterization or measurement in the ambient system. Analysis or assessment of the NFE must rely upon projections based on tests and models that encompass the long-term processes of the evolution of this environment. This NFE Process Model Report (PMR) describes the analyses and modeling based on current understanding of the evolution of the near-field within the rock mass extending outward from the drift wall.},
doi = {10.2172/837130},
url = {https://www.osti.gov/biblio/837130}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {11}
}