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Influence of sand characteristics and scale on the piping process - experiments and multivariate analysis
The internal erosion of a sandy aquifer below a riverdike, a process called piping, is a dominant failuremechanism in the Netherlands.
On the dynamic elastoplastic material point method
A dynamic Material Point Method for use in Geomechanics is presented.
Analytical and numerical analysis of tides and salinities in estuaries (part II) : salinity distributions in prismatic and convergent tidal channels
The analytical model described in this paper computes the maximum salinity distribution using the dispersion coefficient in the mouth as the only model parameter. The model has been calibrated using observational data in a large number of estuaries and experimental data in a tidal flume. The dispersion coefficient was succesfully related to geometric and hydrodynamic parameters resulting in an expression that can be used for convergent estuaries as well as prismatic channels.
Anisotropic creep model for soft soils : discussion
Piled embankments, influence of installation and type of loading
Characterization of a heterogeneous DNAPL source zone in the Borden aquifer using partitioning and interfacial tracers : residual morphologies and background sorption
Accurate assessment of the mass and spatial distribution of dense non-aqueous phase liquids (DNAPLs) in the subsurface is a prerequisite for efficient, cost-effective remediation of these persistent sources of groundwater contamination. A partitioning interwell tracer test (PITT) was performed in the Borden sand aquifer to characterize an aged heterogeneous DNAPL source zone. This zone evolved during 5 years of natural groundwater flow following the infiltration of 50 L chlorinated solvents DNAPL. To assess the lateral variability of remaining DNAPLmass andmorphology, four sweepzoneswere analyzed.
Estimating the depth of fresh and brackish groundwater in a predominantly saline region using geophysical and hydrological methods, Zeeland, the Netherlands
In dit artikel worden meerdere geofysische methoden samengevoegd om de initiële zoet-zout verdeling in de Provincie zeeland te bepalen.
Modelling hyperconcentrated flow in the Yellow River
A large amount of the total sediment load in the Chinese Yellow River is transported during hyperconcentrated floods. These floods are characterized by very high suspended sediment concentrations and rapid morphological changes withalternating sedimentation and erosion in the main channel, and persistent sedimentation on the floodplain. However, the physical mechanisms driving these hyperconcentrated floods are still poorly understood.
Process-based modeling for the Yangtze estuary
A state-of-art process-based model is applied to simulate the hydrodynamics in the Yangtze Estuary in China, as a basicstep to acquaint ourselves with the morphological development and the effect of human interference in the estuary. Amajor improvement with respect to previous models for the Yangtze Estuary is that the present model covers the entiretidal region of the Yangtze River.
Modelling mass evacuations to improve the emergency planning for floods in the UK, The Netherlands and North America