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Publications associées (62)
3-D contact and pore network analysis of MICP cemented sands
The study describes a comprehensive methodology to evaluate X-Ray micro-computed tomography data from sand samples and to characterize their 3D microstructural properties. Fine and medium-grained sands are analyzed in their natural and bio-cemented states. ...
SPRINGER2023Interactions of Cavitation Bubbles with Deformable Interfaces
Cavitation is a topic that has long been of interest due to the large and growing range of applications associated with it. This is mainly because the collapse of cavitation bubbles releases a considerable amount of energy into the surrounding environment. ...
EPFL2023Limits between surface and inner clogging of riverbed by fine sediment
Giovanni De Cesare, Romain Maxime Dubuis
The deposition of fine sediment on top of the riverbed affects the reproduction of spawning fishes and some species of benthos. The clogging of the substrate resulting from this deposition is a well-known issue in rivers affected by anthropogenic activity ...
2023Nanoplastics removal during drinking water treatment: Laboratory- and pilot-scale experiments and modeling
Microplastics detected in potable water sources and tap water have led to concerns about the efficacy of current drinking water treatment processes to remove these contaminants. It is hypothesized that drinking water resources contain nanoplastics (NPs), b ...
ELSEVIER2022Investigation of the effect of mineral dissolution on the geomechanical behaviour of geomaterials
Geotechnical engineering scenarios engaged in internal erosion or mineral dissolution were found worldwide, from CO2 sequestration projects to internal erosion of earth dams. Materials subjected to loss of solid phase from their internal fabric vary from s ...
EPFL2022Modeling Snow Saltation: The Effect of Grain Size and Interparticle Cohesion
Varun Sharma, Michael Lehning, Daniela Brito Melo, Francesco Comola, Armin Sigmund
The surface of the Earth is snow-covered at least seasonally over large areas. This snow surface is highly dynamic, particularly under the influence of strong winds. The motion of snow particles driven by the wind not only changes the snow cover but has im ...
AMER GEOPHYSICAL UNION2022Yielding of a quartz sand from saturated to dry state
The paper presents the results of an experimental work where we analyse the behaviour of an unsaturated quartz sand in a wide range of degree of saturation (from saturated to dry state). The possibility of anticipating the hydro-mechanical behaviour of the ...
E D P SCIENCES2020Direct currents stimulate carbonate mineralization for soil improvement under various chemical conditions
Lyesse Laloui, Dimitrios Terzis, Patrick Gabriel Yihsiu-Ming Hicher
The present study integrates direct electric currents into traditional calcium carbonate mineralization to investigate electrochemical interactions and the subsequent crystalline growth of CaCO3 bonds in sand. A specific line of focus refers to the effect ...
2020Influence of collars on reduction in scour depth at two piers in a tandem configuration
Anton Schleiss, Giovanni De Cesare, Sargol Memar
Bridge failure, due to local scour at bridge pier foundations, has become a critical issue in river and bridge engineering, which might lead to transportation disruption, loss of lives and economic problems. A practical solution to prevent bridge collapses ...
SPRINGER INTERNATIONAL PUBLISHING AG2020Cell-free soil bio-cementation with strength, dilatancy and fabric characterization
Lyesse Laloui, Dimitrios Terzis
A multi-disciplinary approach is adopted in the present work towards investigating bio-cemented geo-materials which extends from sample preparation, to microstructural inspection and mechanical behaviour characterization. We suggest a new way to induce “ce ...
2019