Idioma:

Multi-scale aquifer characterization and groundwater flow model parameterization using direct push technologies

Rogiers, Bart ; Vienken, Thomas ; Gedeon, Matej ; Batelaan, Okke ; Mallants, Dirk ; Huysmans, Marijke ; Dassargues, Alain

Environmental earth sciences, 2014-09, Vol.72 (5), p.1303-1324 [Periódico revisado por pares]

Berlin/Heidelberg: Springer-Verlag

Texto completo disponível

Citações Citado por

Enviar para

Título:
Multi-scale aquifer characterization and groundwater flow model parameterization using direct push technologies
Autor: Rogiers, Bart ; Vienken, Thomas ; Gedeon, Matej ; Batelaan, Okke ; Mallants, Dirk ; Huysmans, Marijke ; Dassargues, Alain
Assuntos: aquifer heterogeneity ; aquifers ; Biogeosciences ; clay ; Computational fluid dynamics ; conditional simulation ; cone penetration testing ; Construction ; cost effectiveness ; Direct push technologies ; direct push technology ; Earth and Environmental Science ; Earth Sciences ; Engineering, computing & technology ; Environmental Science and Engineering ; Geochemistry ; Geological, petroleum & mining engineering ; Geology ; geostatistics ; Ground-water flow ; groundwater ; Groundwater flow ; Géologie, ingénierie du pétrole & des mines ; hydraulic conductivity ; hydraulic profiling ; Hydraulics ; Hydrology/Water Resources ; Ingénierie, informatique & technologie ; injection logging ; Mathematical models ; model validation ; non-stationary geostatistics ; Parameter estimation ; Parametrization ; Sand ; solutes ; Technology ; Terrestrial Pollution ; Thematic Issue ; Three dimensional
É parte de: Environmental earth sciences, 2014-09, Vol.72 (5), p.1303-1324
Notas: http://dx.doi.org/10.1007/s12665-014-3416-1
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
scopus-id:2-s2.0-84940237261
Descrição: Direct push (DP) technologies are typically used for cost-effective geotechnical characterization of unconsolidated soils and sediments. In more recent developments, DP technologies have been used for efficient hydraulic conductivity (K) characterization along vertical profiles with sampling resolutions of up to a few centimetres. Until date, however, only a limited number of studies document high-resolution in situ DP data for three-dimensional conceptual hydrogeological model development and groundwater flow model parameterization. This study demonstrates how DP technologies improve building of a conceptual hydrogeological model. We further evaluate the degree to which the DP-derived hydrogeological parameter K, measured across different spatial scales, improves performance of a regional groundwater flow model. The study area covers an area of ~60 km² with two overlying, mainly unconsolidated sand aquifers separated by a 5–7 m thick highly heterogeneous clay layer (in north-eastern Belgium). The hydrostratigraphy was obtained from an analysis of cored boreholes and about 265 cone penetration tests (CPTs). The hydrogeological parameter K was derived from a combined analysis of core and CPT data and also from hydraulic direct push tests. A total of 50 three-dimensional realizations of K were generated using a non-stationary multivariate geostatistical approach. To preserve the measured K values in the stochastic realizations, the groundwater model K realizations were conditioned on the borehole and direct push data. Optimization was performed to select the best performing model parameterization out of the 50 realizations. This model outperformed a previously developed reference model with homogeneous K fields for all hydrogeological layers. Comparison of particle tracking simulations, based either on the optimal heterogeneous or reference homogeneous groundwater model flow fields, demonstrate the impact DP-derived subsurface heterogeneity in K can have on groundwater flow and solute transport. We demonstrated that DP technologies, especially when calibrated with site-specific data, provide high-resolution 3D subsurface data for building more reliable conceptual models and increasing groundwater flow model performance.
Editor: Berlin/Heidelberg: Springer-Verlag
Idioma: Inglês

Voltar para lista de resultados

Anterior Resultado 2 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Multi-scale aquifer characterization and groundwater flow model parameterization using direct push technologies

Rogiers, Bart ; Vienken, Thomas ; Gedeon, Matej ; Batelaan, Okke ; Mallants, Dirk ; Huysmans, Marijke ; Dassargues, Alain

Berlin/Heidelberg: Springer-Verlag

Buscando em bases de dados remotas. Favor aguardar.