Ponències/Comunicacions de congressos
Enviaments recents
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On the hydration of unsaturated barriers for high-level nuclear waste disposal
(The Hong Kong University of Science and Technology (HKUST), 2018)
Text en actes de congrés
Accés obertThe paper addresses the topic of the effects of hydration and temperature on the final state of an engineered barrier composed of compacted bentonite. In particular the distributions of water content and dry density are ... -
Stabilization of clayey soil using fibre reinforcement
(The Hong Kong University of Science and Technology (HKUST), 2018)
Text en actes de congrés
Accés obertThe paper presents experimental and numerical investigations on crack evolution during desiccation, on unsaturated, compacted and reinforced clay using natural Alfa fibres. The effect of fibre content is investigated and ... -
Ice formation in unsaturated frozen soils
(The Hong Kong University of Science and Technology (HKUST), 2018)
Text en actes de congrés
Accés obertThis paper presents a procedure for determining unfrozen water saturation in a partially saturated frozen soil (clayey silt) using bulk electrical conductivity (EC) measurements. A modification of Archie’s law is proposed ... -
Hygroscopicity issues in powder and grain technology
(The Hong Kong University of Science and Technology (HKUST), 2018)
Text en actes de congrés
Accés obertThe effect of hygroscopicity on flowability of powders and bulk solids with applications in the packaging industry is experimentally and numerically investigated. Firstly, four granular materials are tested at different ... -
Inclusion of chemical effect in a fully coupled THM finite element code
(The Hong Kong University of Science and Technology (HKUST), 2018)
Comunicació de congrés
Accés obertBentonite-rich clays can be used as a buffer / backfill material in deep geological repositories for nuclear waste. The prediction of the long-term performance of a buffer / backfill in such a complex environment, where ... -
Three-dimensional analysis of penetration problems using G-PFEM
(CRC Press, 2018)
Comunicació de congrés
Accés restringit per política de l'editorialNumerical simulation of large displacement problems in geomechanics has attracted the interest of many researchers over the past decades. In many circumstances these problems can be treated as two dimensional: plane stress ... -
DEM modelling of dynamic penetration in granular material
(CRC Press, 2018)
Comunicació de congrés
Accés restringit per política de l'editorialDynamic penetration has been widely employed in some site investigation procedures and for the installation of driven piles. A 3-dimensional discrete element method model has been developed to simulate dynamic rod penetration ... -
Large test to study the role of soil-air interaction in soil cracking
(The Hong Kong University of Science and Technology (HKUST), 2018)
Text en actes de congrés
Accés obertSoil surfaces in contact with the atmosphere are interfaces where different processes play an important role in triggering the formation of cracks due to desiccation. Empirical evidence shows that variables such as solar ... -
Effects of compaction on desiccation cracking of clayey soils
(The Hong Kong University of Science and Technology (HKUST), 2018)
Text en actes de congrés
Accés obertCracking in desiccating soils is an important topic in soil compacted works. This paper presents an experimental study on the effect of compaction on the cracking of a silty clay soil, which was subjected to drying conditions. ... -
Analysis of the hydration of an unsaturated seal
(American Society of Civil Engineers (ASCE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper contains a coupled numerical analysis of the hydration of a potential sealing system for isolating shafts, ramps, and connecting galleries in a deep geological repository for high level nuclear waste. The modeling ... -
Shear strength properties and collapse response of a sandy silt under generalized stress states
(American Society of Civil Engineers (ASCE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper presents preliminary results on the shear strength properties and collapse response of a compacted low-density mixture of fine sand and clayey silt in a hollow cylinder apparatus. Shear strength tests at two ... -
Digital twins in civil and environmental engineering classrooms
(International Centre for Numerical Methods in Engineering (CIMNE), 2018)
Text en actes de congrés
Accés obertDigital twins are understood as digital replica of physical models whose behavior can be observed simultaneously (digitally and physically) in real time. These tools are increasingly used in advanced industries for several ...
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