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首页> 美国政府科技报告 >Measurement of Hydraulic Properties of the B-C Interbed and Their Influence onContaminant Transport in the Unsaturated Zone at the Idaho National Engineering and Environmental Laboratory, Idaho
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Measurement of Hydraulic Properties of the B-C Interbed and Their Influence onContaminant Transport in the Unsaturated Zone at the Idaho National Engineering and Environmental Laboratory, Idaho

机译：爱达荷州爱达荷州国家工程与环境实验室B-C互层的水力特性测量及其对不饱和区污染物运移的影响

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The intensely layered character of the 200-m thick unsaturated zone near theRadioactive Waste Management Complex (RWMC) Subsurface Disposal Area (SDA) at the Idaho National Engineering and Environmental Laboratory (INEEL) critically affects both vertical and horizontal water fluxes. Because of the potential for radionuclide migration from the SDA to the Snake River Plain aquifer, it is important to investigate the role of the unsaturated zone in contaminant transport processes. The unsaturated zone consists of thick layers of fractured basalts interbedded with thinner layers of sediment. These interbeds and basalts were deposited approximately 50,000 to 450,000 years ago during the late Pleistocene. As a part of a drilling program to develop a standard methodology for subsurface characterization and risk assessment at INEEL, hydraulic properties of the 34-m deep sedimentary interbed have been measured at one location in the vicinity of the SDA, including particle size distributions, water retention functions, saturated and unsaturated hydraulic conductivity, and related properties.

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