The Role of Large-Scale Permeability Measurements in Fractured Rock and their Application at Stripa
The macropermeability experiment at the Stripa mine in Sweden is part of the Swedish-American Cooperative Program on Radioactive Waste Storage in Mined Caverns in Crystalline Rock (1,2). The experiment is an attempt to improve permeability characterization techniques for the analysis of regional groundwater flow through low permeability rock in the vicinity of a nuclear waste repository. This experiment consists of monitoring flow into, and pressure surrounding a 5 m x 5 m x 33 m long drift called the ventilation drift at the 335 m level of the Stripa mine (Fig. 1). This paper examines the theoretical problems associated with making such a measurement and describes the actual experiment now in progress.
KeywordsRepresentative Elementary Volume Average Gradient Regional Groundwater Flow Lawrence Berkeley Laboratory Nuclear Waste Repository
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