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In the present report a test design has been developed for determining the in situ permeability of the Boom clay on a large scale at the Mol site. Since a URF is operational in the Boom clay at the Mol site the test has been designed to be run in or from this facility. The proposal is an in-situ macropermeability test with a set-up comprising a central borehole (metric scale in length) designed to allow various types of control of the water-level, surrounded by a lattice of piezometers installed in the clay mass for the monitoring of the interstitial water pressure changes as a function of the various water-level controls. The report describes the potential set-ups and the theoretical background on the basis of existing literature and experiments. The method (technical and practical data of a test set-up) is also described and documented. The method proposed is based on years of expertise gained within the field of in situ migration and hydrogeologic investigations in the Hades-URF.

Additional information

Bibliographic Reference: EUR 14478 EN (1992) 54 pp., FS, ECU 7.50
Availability: (2)
ISBN: ISBN 92-826-4738-2
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