Exploració per autor "Alonso Pérez de Agreda, Eduardo"
Ara es mostren els items 1-20 de 214
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A 1-D Thermo-Hydro-Mechanical model of the middle section of canister retrieval test
(2009)
Text en actes de congrés
Accés restringit per política de l'editorialIn this papera 1-D model simulation of the middle section of Canister Retrieval Test, conducted at the Áspo Hard Rock Laboratory, is presented. The model considers the MX-80 bentonite block, the bentonite-rock interface ... -
A constitutive model for partially saturated soils
(Institution of Civil Engineers (http://www.ice.org.uk/), 1990)
Article
Accés obertThe Paper presents a constitutive model for describing the stress-strain behaviour of partially saturated soils. The model is formulated within the framework of hardening plasticity using two imdependent sets of stress ... -
A constitutive model for soft clayey rocks that includes weathering effects
(Institution of Civil Engineers (http://www.ice.org.uk/), 2007)
Article
Accés obertMicrostructural and mineralogical observations of claystones reveal the presence of clay aggregates bonded by a skeleton of inert minerals such as calcium carbonate. The behaviour of these natural materials evolves from ... -
A constitutive model for the accumulated strain of unsaturated soil under high-cycle traffic loading
(2021-05)
Article
Accés obertThe road base is normally situated above the water table and thus in unsaturated state. Experimental results show that the accumulated strains of the unsaturated road base aggregate under high-cycle traffic loads are ... -
A model for rockill compressibility
(Institution of Civil Engineers (http://www.ice.org.uk/), 2001)
Article
Accés obertThe paper presents a macroscopic constitutive model for rockill that includes the effect of water on compressibility and collapse phenomena. Breakage of rock particles and fracture propagation are basic underlying mechanisms ... -
A new high-pressure triaxial apparatus for inducing and tracking hydro-mechanical degradation of clayey rocks
(2014-11)
Article
Accés restringit per política de l'editorialThis paper presents the development of a new high-pressure triaxial apparatus specifically prepared for inducing and tracking the degradation of clayey rocks. Total suction—used to induce the hydraulic degradation—is applied ... -
A permafrost test on intact gneiss rock
(Elsevier, 2015-07)
Article
Accés obertChanges in permafrost conditions in high mountain rocks have increased the risk of dangerous instabilities. Ice segregation within the rock mass has been interpreted as one of the mechanisms involved in high mountain bedrock ... -
A review of Beliche Dam
(Institution of Civil Engineers (http://www.ice.org.uk/), 2005)
Article
Accés obertBeliche Dam, a zoned earthdam with rockfill shouldersand a central clay core, experienced large collapse settlements due to reservoir impounding and direct action of rainfall. Long-term field records of vertical and ... -
A review of expansive phenomena in Wagenburg North Tunnel
(2009-12-31)
Article
Accés obertThe paper deals on tunnelling and swelling in anhydritic-gypsiferous claystones. The geology of the Gipskeuper in Baden-Württemberg (Germany) and the phenomenology of expansions in Wagenburg North tunnel are described. ... -
A rockfill triaxial cell with suction control
(2009-05)
Article
Accés restringit per política de l'editorialThis paper describes the development of a new triaxial cell specifically built to test coarse granular material under partially saturated conditions. The partial saturation is achieved by imposing a total suction that is ... -
A simplified procedure to assess the dynamic stability of a caisson breakwater
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper describes a simplified method of analysis used to evaluate the stability of a caisson breakwater to sea wave actions. An intensive laboratory program was performed in order to evaluate the static and dynamic ... -
A slow and complex landslide under static and seismic action
(2022-02)
Article
Accés obertA dam construction project for the heightening of a dam is threatened by a large landslide located in the Spanish Southern Pyrenees. A marked syncline structure, folding a flysch formation overlying a marl substratum, is ... -
A study of the effects of suction and roughness on the mechanical behaviour of rock joints
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialThe experimental investigation focused on the effects of suction on the mechanical behaviour of rock joints. Available experimental data on the effect of moisture on joint behaviour is very scarce. Laboratory tests were ... -
Aceleración de deslizamientos por efectos térmicos: modelación mediante el método del punto material
(2017)
Text en actes de congrés
Accés obertLa ocurrencia de deslizamientos rápidos se ha ligado a la pérdida de resistencia efectiva a lo largo de la superficie de rotura debido a excesos de presión de agua inducidos por el calor generado durante el propio movimiento. ... -
An undrained upper bound solution for the face stability of tunnels reinforced by micropiles
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialTunnel in difficult soils may require procedures to prevent tunnel face failures. Face stabilization can be achieved by the installation of some structural elements. This paper presents an analysis of face stability of ... -
Analysis of a full scale in situ test simulating repository conditions
(Wiley, 1998)
Article
Accés obertCoupled thermo-hydro-mechanical (THM) analyses have been used to examine the interacting phenomena associated with the simultaneous heating and hydration of an engineered bentonite barrier placed in a drift excavated in ... -
Analysis of ettringite attack to stabilized railway bases and embankments
(2013)
Comunicació de congrés
Accés restringit per política de l'editorialTwo cases of massive sulphate attack to cement treated embankments and track bases in a high speed railway line are described. In the first case, two large access embankments to a railway viaduct were treated with jet–grouting ... -
Analysis of massive sulphate attack to cement-treated compacted soils
(E3S Web of Conferences, 2020)
Text en actes de congrés
Accés obertThe paper describes the heave experienced by two embankments providing access to a bridge located in a high-speed railway line. The compacted soil, a mixture of a low plasticity clay, sand and gravel, had a significant ... -
Analysis of micro-properties for triaxial behaviour on coarse aggregates using DEM
(CIMNE, 2011)
Text en actes de congrés
Accés obertThis paper presents an analysis of the mechanical behaviour of coarse granular aggregates using the discrete element method. A background reference for the conducted study is the set of results of a few large scale triaxial ... -
Analysis of swelling in tunnels excavated in sulphate claystones
(2009)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper summarizes the main phenomenological aspects of swelling in tunnels excavated in sulphate claystones and formulates a series of theoretical consideration for their coupled hydro-mechanical-chemical analysis. The ...
