干旱区生态环境知识资源中心(Arid): Flow calculations for Yucca Mountain groundwater travel time (GWTT-95)

Arid

DOI	10.2172/401710
报告编号	SAND--96-0819
来源ID	OSTI_ID: 401710
	Flow calculations for Yucca Mountain groundwater travel time (GWTT-95)
	Altman, S.J.; Arnold, B.W.; Barnard, R.W.; Barr, G.E.; Ho, C.K.; McKenna, S.A.; Eaton, R.R.
英文摘要	In 1983, high-level radioactive waste repository performance requirements related to groundwater travel time were defined by NRC subsystem regulation 10 CFR 60.113. Although DOE is not presently attempting to demonstrate compliance with that regulation, understanding of the prevalence of fast paths in the groundwater flow system remains a critical element of any safety analyses for a potential repository system at Yucca Mountain, Nevada. Therefore, this analysis was performed to allow comparison of fast-path flow against the criteria set forth in the regulation. Models developed to describe the conditions for initiation, propagation, and sustainability of rapid groundwater movement in both the unsaturated and saturated zones will form part of the technical basis for total- system analyses to assess site viability and site licensability. One of the most significant findings is that the fastest travel times in both unsaturated and saturated zones are in the southern portion of the potential repository, so it is recommended that site characterization studies concentrate on this area. Results support the assumptions regarding the importance of an appropriate conceptual model of groundwater flow and the incorporation of heterogeneous material properties into the analyses. Groundwater travel times are sensitive to variation/uncertainty in hydrologic parameters and in infiltration flux at upper boundary of the problem domain. Simulated travel times are also sensitive to poorly constrained parameters of the interaction between flow in fractures and in the matrix.
出版年	1996
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	58 GEOSCIENCES ; 05 NUCLEAR FUELS ; YUCCA MOUNTAIN ; HYDROLOGY ; GROUND WATER ; RADIOACTIVE WASTE FACILITIES ; UNDERGROUND DISPOSAL ; RADIOACTIVE WASTE DISPOSAL
URL	http://www.osti.gov/scitech/servlets/purl/401710
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/266681
推荐引用方式 GB/T 7714	Altman, S.J.,Arnold, B.W.,Barnard, R.W.,et al. Flow calculations for Yucca Mountain groundwater travel time (GWTT-95),1996.