Publications associées à Mechanical testing and modelling of an unsaturated silt, with engineering applications

Publications associées (11)

Seawater Intrusion Inhibits Nitrate Removal in Tidal Marsh Aquifers

Tidal freshwater marshes are threatened by seawater intrusion globally due to freshwater discharge reduction and sea-level rise. However, terrestrial nitrate (NO3−) transport responding to seawater intrusion remains poorly understood in tidal marshes. Afte ...

American Geophysical Union2024

Life cycle environmental assessment of retaining walls in unsaturated soils

Alessio Ferrari, Gianluca Speranza

Retaining structures above groundwater level support soils that are usually in a state of partial saturation and subject to the actions of atmospheric agents. The current design approach considers the possible extremes of soil conditions - either totally d ...

ELSEVIER2022

Experimental investigation of energy piles: From laboratory to field testing

Lyesse Laloui, Melis Sütman

Geothermal operation of energy piles involves an interplay between the multi-physical phenomena governing the behaviours of soils, geostructures and the interactions between them, which are mainly characterized by the associated temperature variations. Thi ...

ELSEVIER2021

Tracing and Closing the Water Balance in a Vegetated Lysimeter

Andrea Rinaldo, Michaël Bensimon, Paolo Benettin, Mitra Asadollahi

Closure of the soil water balance is fundamental to ecohydrology. But closing the soil water balance with hydrometric information offers no insight into the age distribution of water transiting the soil column via deep drainage or the combination of soil e ...

AMER GEOPHYSICAL UNION2021

Optimizing drip irrigation for eggplant crops in semi-arid zones using evolving thresholds

Paolo Perona

Field experiments were combined with a numerical model to optimize drip irrigation management based on soil matric potential (SMP) measurements. An experimental crop of eggplant was grown in Burkina Faso from December 2014 to March 2015 and plant response ...

Elsevier2016

Effects of the water retention curve on evaporation from arid soils

Marc Parlange, Ivan Lunati, Francesco Ciocca

Water retention curves approaching infinitely negative matric potentials at residual water content are widely employed to model soil moisture dynamics. When used in numerical simulations, these retention curves fail to satisfactorily describe evaporation f ...

Amer Geophysical Union2014

An experimental and constitutive investigation on the chemo-mechanical behaviour of a clay

Lyesse Laloui, Alessio Ferrari, Paul Joost Witteveen

Engineering issues for which the understanding of the chemo-mechanical behaviour of soils is relevant include wellbore stability problems, the sali-nification of groundwater and nuclear waste storage, etc. However, despite the vast number of situations in ...

Ice Publishing2013

Unsaturated water flow across soil aggregate contacts

Unsaturated water flow through soil aggregates is controlled by the contacts between aggregates. The contacts are highly conductive when wet and become bottle-necks for flow when drained. We postulate that the hydraulic conductivity of the contacts is in f ...

2008

The diffuse infiltration of road runoff: an environmental improvement

Aurèle Parriaux, Michaël Bensimon, Pascal Piguet

The Laboratory of Engineering and Environmental Geology (GEOLEP) has been mandated by Swiss authorities (Swiss Federal Road Office FedRO) to test a new road runoff management concept. This concept promotes the diffuse infiltration of road runoff into infil ...

2008

Anisotropy factor of saturated and unsaturated soils

Dani Or

Variations in the degree of anisotropy in soil hydraulic conductivity with changes in water saturation (S-e) may adversely impact predictability of flow and transport processes. The conceptual "layered cake'' model was extended to consider effects of bulk ...

2006

Characterisation of the mechanical behavior of an unsaturated sandy silt

Lyesse Laloui, Laurent Vulliet, Xing Li

1997