Verification of the both hydrogeological and hydrochemical code results by an on-site test in granitic rocks
Abstract
Verification of the both hydrogeological and hydrogeochemical code results by an on-site test in granitic rocks The project entitled "Methods and tools for the evaluation of the effect of engeneered barriers on distant interactions in the environment of a deep repository facility" deals with the ability to validate the behavior of applied engeneered barriers on hydrodynamic and migration parameters in the water-bearing granite environment of a radioactive waste deep repository facility. A part of the project represents a detailed mapping of the fracture network by means of geophysical and drilling surveys on the test-site (active granite quarry), construction of model objects (about 100 samples with the shape of cylinders, ridges and blocks), and the mineralogical, petrological and geochemical description of granite.
All the model objects were subjected to migration and hydrodynamic tests with the use of fluorescein and NaCl as tracers. The tests were performed on samples with simple fractures, injected fractures and with an undisturbed integrity (verified by ultrasonic).
The gained hydrodynamic and migration parameters of the model objects were processed with the modeling software NAPSAC and FEFLOW. During the following two years, these results and parameters will be verified (on the test-site) by means of a long-term field test including the tuning of the software functionality.