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Overes, P.H.P. (author), Borsje, B. W. (author), Luijendijk, Arjen (author), Hulscher, S. J.M.H. (author)Sand waves are found on shallow, sandy seabeds throughout the world and their dynamics may pose an imminent threat to offshore construction. Therefore, there is a pressing need to understand bed level dynamics in sand wave areas. These bed level dynamics lead to variations in sand wave shape and migration rate over time. However, these...journal article 2024
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Feng, Zhiyao (author), Wang, Shuying (author), Qu, Tongming (author), Zheng, X. (author), Ling, Fanlin (author)Water spewing and muck plugging often occur during earth pressure balance (EPB) shield machines tunnelling in water-rich sandy strata, even though the conventional foam has been employed to condition sandy soils. In this study, a novel thickened foaming agent suitable for EPB shield tunnelling in water-rich sandy strata is developed. In...journal article 2024
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Broomandi, Parya (author), Galán-Madruga, David (author), Satyanaga, Alfrendo (author), Hamidi, Mehdi (author), Ledari, Dorna Gholamzade (author), Fathian, Aram (author), Sarvestan, Rasoul (author), Janatian Ghadikolaei, N. (author), Jahanbakhshi, Ali (author)The Middle East frontal sand and dust storms (SDS) occur in non-summer seasons, and represent an important phenomenon of this region’s climate. Among the mentioned type, spring SDS are the most common. Trend analysis was used in the current study to investigate the spatial-temporal variability of springtime dust events in the Middle East...journal article 2024
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Trikannad, S.A. (author), Attiani, Valentina (author), van der Wielen, Paul W.J.J. (author), Smidt, Hauke (author), van der Hoek, J.P. (author), van Halem, D. (author)Slow sand filters (SSFs) are widely used in drinking water production to improve microbial safety and biological stability of water. Full-scale SSFs are maintained by scraping the biomass-rich top layers of sand. The period of downtime required for filter recovery after scraping is a major challenge due to limited knowledge of the re...journal article 2024
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Kettler, T.T. (author), de Schipper, M.A. (author), Luijendijk, Arjen (author)Projections of high rates of sea level rise have stimulated proposals for adaptation strategies with increasingly high nourishment volumes along sandy beaches. An underlying assumption is that coastal profiles respond rapidly to nourishments by redistributing sediments towards a (new) equilibrium shape. However, this perception may not be...journal article 2024
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Tolooiyan, Ali (author), Gavin, Kenneth (author), Dyson, Ashley P. (author)Accurate determination of the load-penetration behaviour of spudcan footings is vital in predicting the performance of offshore structures. Often, insufficient site investigation data is a limiting factor in assessing spudcan penetration, with the selection of suitable parameters typically derived from triaxial tests or Cone Penetrometer Test...journal article 2024
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Alhaddad, S.M.S. (author), Weij, Dave (author), van Rhee, C. (author), Keetels, G.H. (author)As a result of the dilation of soil matrix, dense submarine sand slopes can temporarily be steeper than the natural angle of repose. These slopes gradually fail by the detachment of individual grains and intermittent collapses of small coherent sand wedges. The key question is whether steep disturbances in a submarine slope grow in size ...journal article 2023
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Calderon Franco, D. (author), Corbera Rubio, F. (author), Cuesta Sanz, M. (author), Pieterse, Brent (author), de Ridder, David (author), van Loosdrecht, Mark C.M. (author), van Halem, D. (author), Laureni, M. (author), Weissbrodt, D.G. (author)Drinking water treatment plants (DWTPs) are designed to remove physical, chemical, and biological contaminants. However, until recently, the role of DWTPs in minimizing the cycling of antibiotic resistance determinants has got limited attention. In particular, the risk of selecting antibiotic-resistant bacteria (ARB) is largely overlooked in...journal article 2023
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Bayraktaroglu, H. (author), Hicks, M.A. (author), Korff, M. (author), Galavi, Vahid (author)Experimental studies show that initial fabric and its evolution under different stress paths highly influence soil behaviour. Even though different sample preparation methods create different inherent anisotropies and cause different material responses, the same initial fabric structure under different stress paths also results in different...journal article 2023
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Trikannad, S.A. (author), van Halem, D. (author), Foppen, J.W.A. (author), van der Hoek, J.P. (author)Slow Sand Filtration is popular in drinking water treatment for the removal of a wide range of contaminants (e.g., particles, organic matter, and microorganisms). The Schmutzdecke in slow sand filters (SSFs) is known to be essential for pathogen removal, however, this layer is also responsible for increased head loss. Since the role of deeper...journal article 2023
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Chauruka, Moline (author), Duker, Annelieke (author), Prasad, Pooja (author), van der Zaag, P. (author)In Zimbabwe, farmer-led irrigation is far more widespread than planners and policy makers realise. Along the Shashani sand river, in the arid to semi-arid lands of south-western Zimbabwe, diverse farmer-initiated irrigation ventures exist. This qualitative case study focuses on bucket irrigation, in which very small vegetable fields of up to...journal article 2023
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Colina Alonso, A. (author), van Maren, D.S. (author), van Weerdenburg, R.J.A. (author), Huismans, Y. (author), Wang, Zhengbing (author)The morphology of tide-dominated systems is progressively influenced by human activities and climate change. Quantitative approaches aiming at understanding or forecasting the effects of interventions and climate change are often aggregated, thereby simplifying or schematizing the investigated area. In this work, we advance on the knowledge...journal article 2023
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Tolooiyan, Ali (author), Gavin, Kenneth (author), Dyson, Ashley P. (author)Offshore jack-up rigs are most commonly founded on large-diameter conical “spudcan” foundations, which are frequently designed using traditional analytical methods for shallow footings. This paper presents the design of a spudcan installed off the coast of Tunisia. The maximum penetration depth of the footing under the available preload is...journal article 2023
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Chakraborty, S. (author), Elhaj, Rayan (author), Foppen, J.W.A. (author), Schijven, Jack (author)We investigated the applicability of Silica encapsulated, superparamagnetic DNA particles (SiDNAmag) in determining aquifer hydraulic parameters at different ionic strengths (1 mM, 5 mM, and 20 mM phosphate buffer) of injection suspension. Thereto, in a homogeneous, unconsolidated sand tank we pulse - injected two uniquely sequenced SiDNAmag...journal article 2023
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Kementzetzidis, Evangelos (author), Pisano, F. (author), Elkadi, A.S.K. (author), Tsouvalas, A. (author), Metrikine, A. (author)Gentle Driving of Piles (GDP) is a new technology for the vibratory installation of tubular (mono)piles. Its founding principle is that both efficient installation and low noise emission can be achieved by applying to the pile a combination of axial and torsional vibrations. Preliminary development and demonstration of the proposed technology...journal article 2023
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Duker, Annelieke E.C. (author), Maseko, Sambulisiwe (author), Moyo, Mehluli A. (author), Karimba, Benson M. (author), Bolding, Alex (author), Prasad, Pooja (author), de Fraiture, Charlotte (author), van der Zaag, P. (author)Farmer-led irrigation is valued for its resilience and ability to cope with shocks and benefit from opportunities. Yet, typologies of farmer-led irrigation are mostly static categorisations without analysing farmers’ decision-making over time, and without studying ‘failed’ cases. We therefore analysed temporal changes in farmers’ irrigation...journal article 2023
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Lopez, María Juliana Chaparro (author), Castillo-Betancourt, Juan Pablo (author), Cabrera, M.A. (author), Caicedo, Bernardo (author), Delage, Pierre (author), Lognonné, Philippe (author), Banerdt, Bruce (author)The dynamic properties of loose sands under low stresses are an unexplored topic in soil dynamics because these soil conditions are uncommon in most geotechnical structures on Earth. However, low densities and low-stress conditions prevail on other planets, like, for instance, the surface of Mars, for which particular attention is presently...journal article 2023
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Li, Z. (author), Liu, Haoyuan (author), Hicks, M.A. (author), Pisano, F. (author)Offshore monopile foundations are exposed to misaligned wind and wave loadings, which are respectively dominated by (nearly) static and cyclic load components. While the response of these systems to unidirectional cyclic loading has been extensively investigated, only a few studies have been devoted to the realistic case of misaligned static...journal article 2023
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Ribas, Francesca (author), Portos-Amill, Laura (author), Falqués, Albert (author), Arriaga, Jaime (author), Marcos, Marta (author), Ruessink, Gerben (author)Mean sea-level rise (MSLR) will induce shoreline recession, increasing the stress on coastal systems of high socio-economic and environmental values. Localized mega-nourishments are meant to alleviate erosion problems by diffusing alongshore over decades and thus feeding adjacent beaches. The 21-st century morphological evolution of the...journal article 2023
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Corbera Rubio, F. (author), Laureni, M. (author), Koudijs, N. (author), Müller, S. (author), van Alen, Theo (author), Schoonenberg, Frank (author), Lücker, Sebastian (author), Pabst, Martin (author), van Loosdrecht, Mark C.M. (author), van Halem, D. (author)Rapid sand filters (RSF) are an established and widely applied technology for groundwater treatment. Yet, the underlying interwoven biological and physical-chemical reactions controlling the sequential removal of iron, ammonia and manganese remain poorly understood. To resolve the contribution and interactions between the individual reactions...journal article 2023