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Geostatistical analysis of primary and secondary data in a sandy aquifer at Mol/Dessel (Belgium)
Rogiers, Bart; Mallants, Dirk; Batelaan, Okke et al.
2010In Cokx, L.; Van Meirvenne, M.; Bogaert, P. et al. (Eds.) 8th International Conference on Geostatistics for Environmental Applications (GeoENV2010)
 

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Keywords :
geostatistics; sandy aquifer; secondary data; CPT; hydraulic conductivity; resistivity logs; kriging
Abstract :
[en] In the framework of the disposal of short-lived low- and intermediate-level radioactive waste in a near-surface disposal facility in Dessel, Belgium, additional extensive site characterization has been performed in 2008. The gathered data now enclose 388 hydraulic conductivity measurements on samples of 8 cored boreholes. Secondary information as grain size analysis, porosity, and borehole geophysical parameters was also gathered. In addition, the geology of the study area has also been thoroughly characterized by a set of 178 cone penetration tests (CPTs) to approximate 50 m depth. This dataset allowed to refine the hydrostratigraphical model of the region. The existing groundwater model, based on large-scale effective hydraulic properties, was updated accordingly. The next step is a small-scale probabilistic approach 1) to validate the current existing deterministic groundwater models and 2) to support design for a monitoring network. In preparation for stochastic realizations of the subsurface, a geostatistical analysis of the available primary and secondary data is performed.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Rogiers, Bart;  Belgian Nuclear Research Centre (SCK•CEN) > Institute for Environment > Health and Safety
Mallants, Dirk;  Belgian Nuclear Research Centre (SCK•CEN) > Institute for Environment > Health and Safety
Batelaan, Okke;  Vrije Universiteit Brussel - VUB > Dept. of Hydrology and Hydraulic Engineering
Gedeon, Matej;  Belgian Nuclear Research Centre (SCK•CEN) > Institute for Environment > Health and Safety
Huysmans, Marijke;  Katholieke Universiteit Leuven - KUL > Dept. of Earth and Environmental Sciences > Hydrogeology
Dassargues, Alain  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Language :
English
Title :
Geostatistical analysis of primary and secondary data in a sandy aquifer at Mol/Dessel (Belgium)
Publication date :
September 2010
Event name :
8th International Conference on Geostatistics for Environmental Applications (GeoENV2010)
Event organizer :
Ghent University
Event place :
Ghent, Belgium
Event date :
13-15 september 2010
Main work title :
8th International Conference on Geostatistics for Environmental Applications (GeoENV2010)
Editor :
Cokx, L.
Van Meirvenne, M.
Bogaert, P.
D`Or, D.
Pages :
90-93
Available on ORBi :
since 28 October 2010

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