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van den Eijnden, A.P. (author), Bésuelle, P. (author), Collin, F. (author), Chambon, R. (author), Desrues, J. (author)The principle of deep geological repositories for the disposal of radioactive waste relies among others on the low permeability of the host rock. As the permeability is influenced by mechanical damage of the material, the coupling between hydraulic and mechanical behaviour of the host rock is of importance in the study of radioactive waste...conference paper 2016
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van den Eijnden, A.P. (author), Bésuelle, P. (author), Collin, F. (author), Chambon, R. (author), Desrues, J. (author)Disposal of spent nuclear fuel and long lived radioactive waste in deep clay geological formations is one of the promising options worldwide. In this concept of the geological disposal system, the Boom Clay is considered as a potential host rock when designing a generic waste repository in the Netherlands. For design and evaluation of a...conference paper 2016
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Bayraktaroglu, H. (author), Gonzalez Acosta, J.L. (author), van den Eijnden, A.P. (author), Korff, M. (author), Hicks, M.A. (author)Natural soil deposits may possess a highly anisotropic nature. The fabric anisotropy of soils which is induced during the soil formation process can lead to severe variation in field scale responses. Although the influence of fabric on the response of sands is well known and several advanced constitutive models have been developed to account for...conference paper 2023
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Gonzalez Acosta, J.L. (author), Varkey, D. (author), van den Eijnden, A.P. (author), Hicks, M.A. (author)Free-field site response analysis is a standard technique used to predict soil deposit dynamic response and liquefaction susceptibility. Such analyses are typically carried out by implementing periodic boundaries to guarantee the same speed of the dynamic waves travelling across them. However, when using random fields to consider the impact of...conference paper 2023
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Gonzalez Acosta, J.L. (author), van den Eijnden, A.P. (author), Hicks, M.A. (author)1D soil column techniques are widely used to evaluate the potential of liquefaction in a system of soil layers. This approach generally leads to large inaccuracies since (1) soil layers are hardly homogeneous and perfectly horizontal and (2) horizontal effects are neglected. To demonstrate the limitation of 1D strategies and the need for 2D...conference paper 2022
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Yu, Beiyang (author), Varkey, D. (author), van den Eijnden, A.P. (author), Rongier, G. (author), Hicks, M.A. (author)This research focuses on investigating the relative performance of a range of machine learning algorithms, namely the artificial neural network, support vector machine, Gaussian process regression, random forest, and XGBoost, for predicting the undrained shear strength from cone penetration test data. This is to assess how machine learning could...conference paper 2023
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Varkey, D. (author), van den Eijnden, A.P. (author), Hicks, M.A. (author)Geological uncertainty can significantly influence the computed response of a geotechnical structure. For example, ignoring the presence of a weak soil layer embedded within a stronger layer and assuming a deterministic stratigraphic boundary can significantly underestimate the probability of failure. In this paper, the coupled Markov chain...conference paper 2023
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Varkey, D. (author), Hicks, M.A. (author), van den Eijnden, A.P. (author)The stability of six regional dyke cross-sections in the Netherlands was re-assessed using the random finite element method (RFEM), which explicitly accounts for the spatial variability of strength parameters. The RFEM assessments of the cross-sections were shown to result in significantly narrower response distributions than those obtained...conference paper 2023
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- van den Eijnden, A.P. (author), Bésuelle, P. (author), Collin, F. (author), Chambon, R. (author) conference paper 2017
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van den Eijnden, A.P. (author), Hicks, M.A. (author), Vardon, P.J. (author)Spatial variation of soil strength parameters is a dominating uncertainty in slope stability analysis. This uncertainty can be accounted for in a stochastic description, based on a global geostatistical characterization of the soil strength parameters, which leads to a wide range of possible slope responses, of which only a small proportion...conference paper 2017
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Gonzalez Acosta, J.L. (author), van den Eijnden, A.P. (author), Hicks, M.A. (author)Soil liquefaction is investigated considering a saturated soil deposit and by implementing standard techniques of random field theory to distribute initial void ratio values and assess liquefaction risk. The soil domain is represented in a 2-dimensional (2D) random finite element model for the dynamic analysis of coupled behavior. Multiple...conference paper 2023
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Lloret Cabot, M. (author), Hicks, M.A. (author), Van den Eijnden, A.P. (author)Spatial variability of soil properties is inherent in soil deposits, whether as a result of natural geological processes or engineering construction. It is therefore important to account for soil variability in geotechnical design in order to represent more realistically a soil’s in situ state. This variability may be modelled as a random field,...journal article 2012
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van den Eijnden, A.P. (author), Schweckendiek, T. (author), Hicks, M.A. (author)A kriging-based metamodelling approach for analysing the structural reliability of a sheetpile wall in a dyke is formulated. This specific problem is characterised by high target reliabilities ((Formula presented.)) in combination with a noisy and incomplete numerical model response. Starting from the original formulation of active learning...journal article 2021
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Sorgatz, Julia (author), van den Eijnden, A.P. (author), Montenegro, Héctor (author), Hicks, M.A. (author)To protect embankments along German inland waterways against local slope sliding failure caused by ship-induced water level drawdown, they are mainly secured by bank revetments. Often, large embankment sections are designed on the basis of a limited number of field and laboratory tests. Thus, uncertainties arise with regard to the mechanical and...journal article 2023
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de Gast, T. (author), Hicks, M.A. (author), van den Eijnden, A.P. (author), Vardon, P.J. (author)A reliability-based analysis framework, accounting for uncertainty arising from the spatial variability of soil properties, has been validated for the controlled, well-instrumented slope failure of an historic dyke in the Netherlands. Using soil property statistics derived from the results of laboratory and cone penetration test (CPT) data for...journal article 2020
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Varkey, D. (author), Hicks, M.A. (author), van den Eijnden, A.P. (author), Vardon, P.J. (author)Various simplified approaches are used to calculate the characteristic values of shear strength properties, which have then been used in deterministic stability analyses of a dyke cross-section. The calculated factors of safety are compared with the 5-percentile ‘system response’ of the dyke cross-section, calculated using the more exhaustive...journal article 2020
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Varkey, D. (author), Hicks, M.A. (author), van den Eijnden, A.P. (author)Uncertainty is inevitable in the characterisation of a geotechnical site, especially due to the inherently heterogeneous nature of the ground. In this paper, a method for characterising a subsurface with limited cone penetration test (CPT) data is proposed. The method is based on integrating predictions of CPT parameters with a probabilistic...journal article 2023
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Pardoen, Benoît (author), Collin, Frédéric (author), Bésuelle, Pierre (author), Charlier, Robert (author), Talandier, Jean (author), Dal Pont, Stefano (author), Cosenza, Philippe (author), van den Eijnden, A.P. (author), Desrues, Jacques (author)In the context of underground exploitation, the behaviour of rocks near galleries and tunnels conditions their stability. Underground drilling generates deformations, damage, fracturing, and significant modification of flow characteristics in the surrounding rock. However, the influence of small-scale characteristics and behaviour on the rock...journal article 2020
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Sun, Yufeng (author), Pardoen, Benoît (author), van den Eijnden, A.P. (author), Wong, Henry (author)Clay rocks are multiphase porous media having a complex structure and behaviour characterised by heterogeneity, damage and viscosity, existing on a wide range of scales. The mesoscopic scale of mineral inclusions embedded in a clay matrix has an important role in the mechanisms of deformation under mechanical loading by cracking and creeping....journal article 2023
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Fauchille, A. L. (author), van den Eijnden, A.P. (author), Ma, L. (author), Chandler, M. (author), Taylor, K. G. (author), Madi, K. (author), Lee, P. D. (author), Rutter, E. (author)The microstructure of a highly laminated Lower Bowland Shale sample is characterized at the micron-to millimeter scale, to investigate how such characterization can be utilized for microstructure-based modelling of the shale's geomechanical behavior. A mosaic of scanning electron microscope (SEM) back-scattered electron (BSE) images was...journal article 2018
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