Simultaneous inversion of air-injection tests in fractured unsaturated tuff at Yucca Mountain
نویسندگان
چکیده
منابع مشابه
Field tracer-transport tests in unsaturated fractured tuff.
This paper presents the results of a field investigation in the unsaturated, fractured welded tuff within the Exploratory Studies Facility (ESF) at Yucca Mountain, NV. This investigation included a series of tests during which tracer-laced water was released into a high-permeability zone within a horizontal injection borehole. The tracer concentration was monitored in the seepage collected in a...
متن کاملA Mountain-Scale Model for Characterizing Unsaturated Flow and Transport in Fractured Tuffs of Yucca Mountain
mountain-scale UZ flow model (Wu et al., 2003), which is in turn based on the analysis and results of the aboveWe present a large-scale modeling study characterizing fluid flow referenced work (as well as many other studies). Buildand tracer transport in the unsaturated zone (UZ) of Yucca Mountain, Nevada, the proposed underground repository site for storing highing on our previous investigatio...
متن کاملEvolution of the unsaturated zone testing at Yucca Mountain.
The evaluation of the Yucca Mountain site has evolved from intensive surface-based investigations in the early 1980s to current focus on testing in underground drifts. Different periods of site characterization activities and prominent issues concerning the unsaturated zone (UZ) are summarized. Data collection activities have evolved from mapping of faults and fractures to estimation of percola...
متن کاملTemporal damping effect of the Yucca Mountain fractured unsaturated rock on transient infiltration pulses
Performance assessment of the Yucca Mountain unsaturated zone (UZ) as the site for an underground repository of high-level radioactive waste relies on the crucial assumption that water percolation processes in the unsaturated zone can be approximated as a steadystate condition. Justification of such an assumption is based on temporal damping effects of several geological units within the unsatu...
متن کاملPore Connectivity, Episodic Flow, and Unsaturated Diffusion in Fractured Tuff
We use an integrated approach consisting of experiments and complementary pore-scale network modeling to investigate the occurrence of sparsely connected pore spaces in rock matrices at Yucca Mountain, Nevada, and their implications for matrix diffusion. Imbibition results indicate that pore spaces in devitrified tuff are not well-connected, and that this lack of connectivity is further compoun...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 1999
ISSN: 0043-1397
DOI: 10.1029/1999wr900120