干旱区生态环境知识资源中心(Arid): Determining the Porosity and Saturated Hydraulic Conductivity of Binary Mixtures

Arid

DOI	10.2172/1016457
报告编号	PNNL-18801
来源ID	OSTI_ID: 1016457
	Determining the Porosity and Saturated Hydraulic Conductivity of Binary Mixtures
	Zhang, Z. F.; Ward, Anderson L.; Keller, Jason M.
英文摘要	Gravels and coarse sands make up significant portions of some environmentally important sediments, while the hydraulic properties of the sediments are typically obtained in the laboratory using only the fine fraction (e.g., <2 mm or 4.75 mm). Researchers have found that the content of gravel has significant impacts on the hydraulic properties of the bulk soils. Laboratory experiments were conducted to measure the porosity and the saturated hydraulic conductivity of binary mixtures with different fractions of coarse and fine components. We proposed a mixing-coefficient model to estimate the porosity and a power-averaging method to determine the effective particle diameter and further to predict the saturated hydraulic conductivity of binary mixtures. The proposed methods could well estimate the porosity and saturated hydraulic conductivity of the binary mixtures for the full range of gravel contents and was successfully applied to two data sets in the literature.
出版年	2009
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	54 ENVIRONMENTAL SCIENCES ; BINARY MIXTURES ; HYDRAULIC CONDUCTIVITY ; HYDRAULICS ; POROSITY ; SEDIMENTS ; SOILS Gravel Impact ; Hydraulic Properties ; Vadose Zone
URL	http://www.osti.gov/scitech/servlets/purl/1016457
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/269900
推荐引用方式 GB/T 7714	Zhang, Z. F.,Ward, Anderson L.,Keller, Jason M.. Determining the Porosity and Saturated Hydraulic Conductivity of Binary Mixtures,2009.