干旱区生态环境知识资源中心(Arid): Stochastic hydrogeologic units and hydrogeologic properties development for total-system performance assessments. Yucca Mountain Site Characterization Project

Arid

DOI	10.2172/110776
报告编号	SAND--94-0244
来源ID	OSTI_ID: 110776
	Stochastic hydrogeologic units and hydrogeologic properties development for total-system performance assessments. Yucca Mountain Site Characterization Project
	Schenker, A.R.; Guerin, D.C. [Los Alamos Technical Associates, Albuquerque, NM (United States)]; Robey, T.H. [Spectra Research Institute, Albuquerque, NM (United States)]; Rautman, C.A.; Barnard, R.W. [Sandia National Labs., Albuquerque, NM (United States)]
英文摘要	A stochastic representation of the lithologic units and associated hydrogeologic parameters of the potential high-level nuclear waste repository are developed for use in performance-assessment calculations, including the Total-System Performance Assessment for Yucca Mountain-SNL Second Iteration (TSPA-1993). A simplified lithologic model has been developed based on the physical characteristics of the welded and nonwelded units at Yucca Mountain. Ten hydrogeologic units are developed from site-specific data (lithologic and geophysical logs and core photographs) obtained from the unsaturated and saturated zones. The three-dimensional geostatistical model of the ten hydrogeologic units is based on indicator-coding techniques and improves on the two-dimensional model developed for TSPA91. The hydrogeologic properties (statistics and probability distribution functions) are developed from the results of laboratory tests and in-situ aquifer tests or are derived through fundamental relationships. Hydrogeologic properties for matrix properties, bulk conductivities, and fractures are developed from existing site specific data. Extensive data are available for matrix porosity, bulk density, and matrix saturated conductivity. For other hydrogeologic properties, the data are minimal or nonexistent. Parameters for the properties are developed as beta probability distribution functions. For the model units without enough data for analysis, parameters are developed as analogs to existing units. A relational, analytic approach coupled with bulk conductivity parameters is used to develop fracture parameters based on the smooth-wall-parallel-plate theory. An analytic method is introduced for scaling small-core matrix properties to the hydrogeologic unit scales.
出版年	1995
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	05 NUCLEAR FUELS ; 54 ENVIRONMENTAL SCIENCES ; 58 GEOSCIENCES ; HIGH-LEVEL RADIOACTIVE WASTES ; UNDERGROUND DISPOSAL ; GEOLOGY ; MATHEMATICAL MODELS ; YUCCA MOUNTAIN ; HYDROLOGY ; SITE CHARACTERIZATION ; LITHOLOGY ; GROUND WATER ; Yucca Mountain Project
URL	http://www.osti.gov/scitech/servlets/purl/110776
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/266292
推荐引用方式 GB/T 7714	Schenker, A.R.,Guerin, D.C. [Los Alamos Technical Associates, Albuquerque, NM ,Robey, T.H. [Spectra Research Institute, Albuquerque, NM ,et al. Stochastic hydrogeologic units and hydrogeologic properties development for total-system performance assessments. Yucca Mountain Site Characterization Project,1995.