• A. Marino, S. Amoroso, M. Arroyo, P. Monaco, A. Gens
    Journal of Geotechnical and Geoenvironmental Engineering (2019). Vol. 145 (1), pp. 04018102-1/04018102-12

    Abstract
    The paper explores the application of conventional (DMT) and seismic (SDMT) dilatometer tests to an important case of deep excavation design. The work presents finite-element [...]

  • M. Mánica, A. Gens, J. Vaunat, D. Ruiz
    Computers and Geotechnics (2018). Vol. 103, pp. 138-150

    Abstract
    The paper addresses the numerical simulation of strain localisation in stiff clays that exhibit softening behaviour. An elastoplastic constitutive model developed to incorporate [...]

  • D. Gallipoli, P. Grassi, S. Wheeler, A. Gens
    Geomechanics for energy and the environment (2018). Vol. 15, pp. 3-9 (Preprint)

    Abstract
    The net stress plus suction and the average skeleton stress plus modified suction are two alternative sets of energetically consistent stress variables for modelling the hydro-mechanical [...]

  • J. Butlanska, M. Arroyo, S. Amoroso, A. Gens
    Geotechnical Testing Journal (2018). Vol. 41 (5), pp. 1-17 (Preprint)

    Abstract
    Calibration chambers are frequently used to verify, adapt, or both verify and adapt empirical relations between different state variables and in situ test results. Virtual [...]

  • M. Mánica, A. Gens, J. Vaunat, D. Ruiz
    Computers and Geotechnics (2017). Vol. 85, pp. 341-350

    Abstract
    The paper presents a constitutive model for argillaceous rocks, developed within the framework of elastoplasticity, that includes a number of features that are relevant for [...]

  • D. Seyedi, A. Gens
    Computers and Geotechnics (2017). Vol. 85, pp. 275-276 (Preprint)

    Abstract
    Deep geological disposal is considered as one of the promising options for the long-term management of the High-Level (HL) and Intermediate-Level Long-Lived (IL-LL) radioactive [...]

  • A. Gens, K. Wieczorek, I. Gaus, B. Garitte, J. Mayor, K. Schuster, G. Armand, J. García-Siñeriz, T. Trick
    Swiss Journal of Geosciences (2017). Vol. 110 (1), pp. 269-286

    Abstract
    The final publication is available at Springer via http://dx.doi.org/10.1007/s00015-016-0258-8 The paper presents an overview of the behaviour of Opalinus Clay under thermal [...]

  • T. Charlton, M. Rouainia, A. Gens
    Applied Ocean Research (2016). Vol. 61, pp. 156-166

    Abstract
    As offshore energy developments move towards deeper water, moored floating production facilities are increasingly preferred to fixed structures. Anchoring systems are therefore [...]

  • M. Castilla, A. Gens, M. Villar, S. Olivella
    International journal of geomechanics (2016). Vol. 16 (6), pp. D4016015-1/D4016015-17 (Preprint)

    Abstract
    This work presents a fully coupled formulation developed to handle engineering problems in unsaturated (and saturated) soils that present two dominant void levels. The proposed [...]

  • M. Cintia, M. Arroyo, F. Calvetti, A. Gens
    International Journal for Numerical and Analytical Methods in Geomechanics (2016). Vol. 40 (13), pp. 1773-1798

    Abstract
    The mechanical behavior of granular materials is characterized by strong nonlinearity and irreversibility. These properties have been differently described by a variety of [...]

  • Y. Mao, E. Romero, A. Gens
    E3S Web of Conferences (2016). Vol. 9, pp. 1-9

    Abstract
    The present paper explores the use of the measurement of bulk electric conductivity and relative dielectric permittivity during freezing and thawing to estimate the ice content [...]

  • C. Buenfil, E. Romero, A. Lloret, A. Gens
    E2S Web of Conferences (2016). Vol. 9, pp. 1-6

    Abstract
    Compaction induces anisotropy on soil deformational response due to preferential straining associated with the fabrication process. An experimental insight into the stress-strain [...]

  • C. González, M. Arroyo, A. Gens
    Tunnelling and Underground Space Technology (2016). Vol. 57, pp. 47-54

    Abstract
    In this communication we propose a method to estimate net thrust and torque applied at the excavation front by cutting tools from EPB machines when they are working in mixed [...]

  • M. Castilla, C. Arson, A. Gens, F. Aponte
    Geomechanics for energy and the environment (2016). Vol. 6, pp. 101-115

    Abstract
    The geological disposal of a high level radioactive waste relies in a system composed of engineered and geological barriers. The soils and rocks involved in the design [...]

  • F. Casini, A. Gens, S. Olivella, G. Viggiani
    Environmental geotechnics (2016). Vol. 3 (3), pp. 1-14 (Preprint)

    Abstract
    The use of artificial ground freezing (AGF) to form earth support systems has had applications worldwide. These cover a variety of construction problems, including the [...]

  • M. Mánica, A. Gens, J. Vaunat, D. Ruiz
    Géotechnique Letters (2016). Vol. 6 (2), pp. 156-162

    Abstract
    A cross-anisotropic formulation for elasto-plastic constitutive models based on a non-uniform scaling of the stress tensor is described. Taking advantage of the material symmetries [...]

  • M. Ciantia, M. Arroyo, J. Butlanska, A. Gens
    Computers and Geotechnics (2016). Vol. 73, pp. 109-127 (Preprint)

    Abstract
    A three-dimensional discrete element model is used to investigate the effect of grain crushing on the tip resistance measured by cone penetration tests (CPT) in calibration [...]

  • C. González, M. Arroyo, A. Gens
    Geomechanik and Tunnelbau (2015). Vol. 8 (3), pp. 258-264

    Abstract
    This paper summarizes the main observations related to geotechnical properties and tool changes that characterize the different tunnel drives in a database of 33 km of EPB [...]

  • M. Ciantia, M. Arroyo, F. Calvetti, A. Gens
    Géotechnique (2015). Vol. 65 (2), pp. 91-110 (Preprint)

    Abstract
    In this study oedometric compression tests of hydrocarbon coke, Fontainebleau sand and silica sand are simulated in three dimensions using breakable particles. The method [...]

  • . Scipedia, S. Wheeler, J. Pineda, D. Sheng, A. Gens
    Canadian Geotechnical Journal (2014). Vol. 51 (12), pp. 1423-1437

    Abstract
    Mechanical and water retention behaviour of unsaturated soils is investigated in the context of two well established coupled constitutive models, each of which is formulated [...]

  • B. Indraratna, W. Premadasa, E. Brown, A. Gens, A. Heitor
    International Journal of Rock Mechanics and Mining Sciences (2014). Vol. 70, pp. 296-307

    Abstract
    Discontinuities such as fault planes, joints and bedding planes in a rock mass may be filled with different types of fine-grained material that are either transported or accumulated [...]

  • J. Butlanska, M. Arroyo, A. Gens, C. O'Sullivan
    Canadian Geotechnical Journal (2014). Vol. 51 (1), pp. 51-66

    Abstract
    A virtual calibration chamber was developed using a three-dimensional (3D) discrete element method (DEM) to perform cone penetration tests (CPTs) on a discrete analogue of [...]

  • S. F., . Kohler, . Landstorfer, A. Conde

    Abstract
    '''The installation of automatic data acquisition systems, together with the use of machine learning, allow obtaining useful information on the behaviour of dams. [...]


  • Abstract
    '''The improvements in monitoring devices result in databases of increasing size showing dam behaviour. Advanced tools are required to extract useful information [...]

  • N. Climent, M. Arroyo, C. O'Sullivan, A. Gens
    European Journal of Environmental and Civil Engineering (2014). Vol. 18 (9), pp. 983-1008

    Abstract
    Sand production in oil wells is often predicted using continuum fluid-coupled models. However, a continuum approach cannot capture important features of the sanding problem, [...]

  • F. Salazar, B. Crookston, M. Hariri-Ardebili, A. Conde, . D. J. Vicente, A. Conde

    Abstract
    The availability of machine learning techniques opens up possibilities in different fields of civil engineering. Their application in conjunction with numerical simulations [...]

  • A. Gens, B. Vallejan, M. Zandarin, M. Sanchez
    Journal of Rock Mechanics and Geotechnical Engineering (2013). Vol. 5 (3), pp. 191-199

    Abstract
    The paper presents two case studies that provide information on the process of homogenization of initially heterogeneous clay barriers and seals. The first case is the canister [...]


  • Abstract
    The advances in sensors and communication technologies open great possibilities in the management and maintenance of engineering systems. In general, the performance of monitoring [...]

  • E. Alonso, N. Pinyol, A. Gens
    Géotechnique (2013). Vol. 63 (6), pp. 463-478

    Abstract
    The paper explores the behaviour of compacted soils throughout the (dry density–water content) compaction plane by means of a conceptual framework that incorporates [...]

  • L. Guimarães, A. Gens, M. Sanchez, S. Olivella
    Geotechnique (2013). Vol. 63 (3), pp. 221-234

    Abstract
    The paper presents a chemo-mechanical model for expansive clays that takes into account the effects of cation content and cation exchange. These factors play a key role [...]

  • B. Garitte, A. Bond, A. Millard, C. Zhang, C. McDermott, S. Nakama, A. Gens
    Journal of rock mechanics and geotechnical engineering (2013). Vol. 5 (1), pp. 1-17

    Abstract
    In this paper, a modelling benchmark exercise from the DECOVALEX-2011 project is presented. The benchmark is based on the performance and results of a laboratory drying [...]

  • J. Butlanska, M. Arroyo, A. Gens
    Studia Geotechnica et Mechanica (2013). Vol. XXXV (4), pp. 13-22

    Abstract
    It has recently been shown (Arroyo et al. [1]) that 3D DEM models are able to reproduce with reasonable accuracy the macroscopic response of CPT performed in calibration chambers [...]

  • C. González, M. Arroyo, A. Gens
    Obras y proyectos. Revista de ingeniería civil (2013). Vol. 13, pp. 6-18

    Abstract
    El empleo de tuneladoras TBM (Tunnel Boring Machine) es cada vez más frecuente aunque su optimización requiere la evaluación precisa de varios riesgos [...]

  • B. Garitte, A. Gens, J. Vaunat, G. Armand
    Rock Mechanics and Rock Engineering (2012). Vol. 47, pp. 111-129

    Abstract
    This study focuses on the characterisation of thermal conductivity for three potential host rocks for radioactive waste disposal. First, the heat conduction process is reviewed [...]

  • M. Castilla, A. Gens, L. Guimarães
    Canadian Geotechnical Journal (2012). Vol. 49 (10), pp. 1169-1195

    Abstract
    A geological disposal facility for high-level radioactive waste (HLW) encompasses both natural (host rock) and (generally clay-based) engineered barriers. Many processes can [...]

  • M. Arroyo, M. Ciantia, R. Castellanza, A. Gens, R. Nova
    Computers and Geotechnics (2012). Vol. 45, pp. 140-150

    Abstract
    Engineering practice has usually dealt with the treated soil bodies using simplistic constitutive models (e.g. elastic perfectly-plastic Mohr–Coulomb). In this [...]

  • N. González, M. Rouainia, M. Arroyo, A. Gens
    Géotechnique (2012). Vol. 62 (12), pp. 1095-1109

    Abstract
    Recent studies on London Clay have identified a number of different units in the geological profile, and have highlighted the role of soil structure in mechanical behaviour. [...]

  • A. Zhou, D. Sloan, S. Sloan, A. Gens
    Computers and Geotechnics (2012). Vol. 43, pp. 111-123

    Abstract
    Based on the equations for volume change and saturation variation proposed in the companion paper [37], an alternative constitutive framework is presented for interpreting [...]

  • N. Zhou, D. Sheng, S. Scott, A. Gens
    Computers and Geotechnics (2012). Vol. 43, pp. 178-187

    Abstract
    Unsaturated soil behaviour, such as volume change, shear strength and yield stress, is usually interpreted and modelled in terms of stress and suction. This approach [...]

  • M. Castilla, A. Gens, S. Olivella
    International Journal of Numerical and Analytical Methods in Geomechanics (2012). Vol. 36 (4), pp. 391-421

    Abstract
    Engineered barriers are basic elements in the design of repositories for the isolation of high‐level radioactive waste. This paper presents the thermo‐hydro‐mechanical [...]

  • A. Gens, B. Vallejan, M. Castilla, C. Imbert, M. Villar, M. Geetl
    Géotechnique (2011). Vol. 61 (5), pp. 367-386

    Abstract
    The paper describes a theoretical and experimental study of the coupled hydromechanical behaviour of a compacted mixture of bentonite powder and bentonite pellets intended [...]

  • M. Zandarin, A. Gens, S. Olivella, E. Alonso
    Physics and Chemistry of the Earth (2011). Vol. 36 (17-18), pp. 1806-1816

    Abstract
    The paper presents a 2-D axisymmetric numerical simulation of the Canister Retrieval Test (CRT). The main objectives of this analysis are the study of the canister–buffer [...]

  • M. Arroyo, J. Butlanska, A. Gens, F. Calvetti, M. Jamiolkowski
    Géotechnique (2011). Vol. 61 (6), pp. 525-531

    Abstract
    A virtual calibration chamber was built using a threedimensional model based on the discrete-element method. The chamber was then filled with a scaled granular equivalent [...]

  • A. Lima, E. Romero, A. Gens, J. Muñoz, X. Li
    Journal of rock mechanics and geotechnical engineering (2010). Vol. 2 (2), pp. 124-128

    Abstract
    Boom clay formation is a potential natural host rock for geological disposal of high-level nuclear waste in Belgium. Heating pulse tests with controlled power supply (maximum [...]

  • A. Gens
    Géotechnique (2010). Vol. 60 (1), pp. 3-74

    Abstract
    The range of problems that geotechnical engineers must face is increasing in complexity and scope. Often, complexity arises from the interaction between the soil and [...]

  • M. Castilla, A. Gens, S. Olivella
    Anais da Academia Brasileira de Ciências (2010). Vol. 82 (1), pp. 153-168

    Abstract
    The storage of high level radioactive waste is still an unresolved problem of the nuclear industry, being geological disposal the most favoured option and, naturally, the [...]

  • A. Gens, L. Guimarães, S. Olivella, M. Sanchez
    Journal of rock mechanics and geotechnical engineering (2010). Vol. 2 (2), pp. 97-102

    Abstract
    A fully coupled thermo-hydro-mechano-chemical (THMC) formulation is described in this paper. Special attention is paid to phenomena likely to be encountered in clay barriers [...]

  • I. Berdugo, E. Alonso, A. Gens, M. Albis
    Revista de la academia Colombiana de Ciencias Exactas, Físicas y Naturales (2009). Vol. 31 (129), pp. 455-469

    Abstract
    The paper deals on tunnelling and swelling in anhydritic-gypsiferous claystones. The geology of the Gipskeuper in Baden-Württemberg (Germany) and the phenomenology of [...]

  • N. González, M. Arroyo, A. Gens
    Soils and Formulation (2009). Vol. 49 (3), pp. 329-340

    Abstract
    A bonded elasto-plastic soil model is adopted to simulate self-boring pressuremeter tests. Calibration of the model with results from several natural clays identifies [...]

  • I. Berdugo, E. Alonso, E. Romero, A. Gens
    Epsilon (2009). Vol. 12, pp. 13-37

    Abstract
    Cases of swelling in tunnels excavated through Triassic sulphate-bearing rocks from the Gipskeuper and the Anhydritgruppe are presented and discussed in this series of papers [...]

  • I. Berdugo, E. Alonso, E. Romero, A. Gens
    Epsilon (2009). Vol. 12, pp. 39-53

    Abstract
    Part II of this series of paper deals with the phenomenology of swelling in tunnels from Jura Mountains (Switzerland) excavated through the Gipskeuper and the Anhydritgruppe. [...]

  • A. Gens, M. Sanchez, L. Guimarães, E. Alonso
    Geotechnique (2009). Vol. 59 (4), pp. 377-399

    Abstract
    The paper describes the performance, observations and interpretation of a large-scale in situ heating test that simulates a disposal concept for heat-emitting, high-level [...]

  • S. Nishimura, A. Gens, S. Olivella, R. Jardine
    Géotechnique (2009). Vol. 59 (3), pp. 159-171

    Abstract
    A fully coupled thermo-hydro-mechanical (THM) finite element (FE) formulation is presented that considers freezing and thawing in water-saturated soils. The formulation considers [...]

  • A. Gens, B. Garitte, S. Olivella, J. Vaunat
    European Journal of Environmental and Civil Engineering (2009). Vol. 13 (7-8), pp. 937-962

    Abstract
    Deep geological disposal in suitable host rocks is the favoured strategy for the storage and disposal of heat-emitting high level nuclear waste. A rational design of repositories [...]

  • D. Sloan, D. Fredlund, A. Gens
    Canadian Geotechnical Journal (2008). Vol. 45 (12), pp. 1784-1787

    Abstract
    We would like to thank the discussers for their interest in our paper and also for their challenging questions, which show their thorough knowledge on the subject. Their comments [...]

  • D. Sloan, A. Gens, D. Fredlund, S. Sloan
    Computers and Geotechnics (2008). Vol. 35 (6), pp. 810-824

    Abstract
    This paper presents an overview of constitutive modelling of unsaturated soils and the numerical algorithms for solving the associated boundary value problems. It first discusses [...]

  • R. Mair, A. Gens
    Géotechnique (2008). Vol. 58 (9), pp. 736-736

    Abstract
    New developments in both the theory and the practice of tunnelling are covered in the lecture. The important relationship between tunnelling and geotechnics is highlighted, [...]

  • A. Gens, D. Sloan
    Computers and Geotechnics (2008). Vol. 35 (6), pp. 809

  • M. Sanchez, A. Gens, L. Guimarães, S. Olivella
    Computers and Geotechnics (2008). Vol. 35 (6), pp. 860-871

    Abstract
    A multi-mechanism generalisation of Sloan’s integration scheme for elasto-plastic laws has been developed in order to implement a double structure model for expansive [...]

  • D. Gallipoli, A. Gens, G. Chen, F. D'Onza
    Computers and Geotechnics (2008). Vol. 35 (6), pp. 852-834

    Abstract
    An analysis of results from published laboratory tests on Jossigny silt and Barcelona clayey silt is presented to confirm the existence of a unique capillary bonding function [...]

  • G. Gudehus, A. Amorosi, A. Gens, I. Herle, D. Kolymbas, D. Masin, D. Miui-Wood
    International Journal for Numerical and Analytical Methods in Geomechanics (2008). Vol. 32 (12), pp. 1571-1572

  • A. Menin, V. Salomoni, R. Santagiuliana, L. Simoni, A. Gens, B. Schrefler
    International Journal for Computational Methods in Engineering Science and Mechanics (2008). Vol. 9 (5), pp. 270-287

    Abstract
    This paper aims to demonstrate that capillary effects and structural collapse can not be ruled out as significant factors in the development of subsidence occurring above [...]

  • D. Sheng, D. Fredlund, A. Gens
    Canadian Geotechnical Journal (2008). Vol. 45 (4), pp. 511-534

    Abstract
    Although a number of constitutive models for unsaturated soils exist in the literature, some fundamental questions have not been fully answered. There are questions related [...]

  • E. Castellanos, M. Villar, E. Romero, A. Lloret, A. Gens
    Physics and Chemistry of the Earth (2008). Vol. 33 (S1), pp. S516-S526

    Abstract
    The effect of the salinity of the saturating fluid on the hydro-mechanical properties of the FEBEX compacted bentonite was investigated by means of swelling, compressibility and [...]

  • M. Villar, M. Sanchez, A. Gens
    Physics and Chemistry of the Earth (2008). Vol. 33 (S1), pp. S476-S485

    Abstract
    The conditions of the bentonite in an engineered barrier for high-level radioactive waste disposal were simulated in a series of tests performed in cylindrical cells (length [...]

  • A. Gens, J. Vaunat, B. Garitte, Y. Wileveau
    Geotechnique (2007). Vol. 57 (2), pp. 207-228

    Abstract
    The paper presents an interpretation of an in situ heating test carried out on Opalinus clay in the Mont Terri underground laboratory. Opalinus clay is a stiff, strongly bedded, [...]

  • L. Guimarães, A. Gens, S. Olivella
    Transport in Porous Media (2007). Vol. 66 (3), pp. 341-372

    Abstract
    A fully coupled formulation combining reactive transport and an existing thermo-hydro-mechanical (THM) code is presented. Special attention has been given to phenomena likely [...]

  • M. Geet, G. Volckaert, W. Bastiaens, N. Maes, E. Weetjens, X. Sillen, B. Vallejan, A. Gens
    Physics and Chemistry of the Earth (2007). Vol. 32 (1-7), pp. 123-134

    Abstract
    The backfilling and sealing of shafts and galleries is an essential part of the design of underground repositories for high-level radioactive waste. Part of the EC funded [...]

  • A. Gens, M. Sánchez, D. Sloan
    Acta Geotechnica (2006). Vol. 1 (3), pp. 137-147

    Abstract
    The paper presents a review of constitutive modelling of unsaturated soils. After a brief historical perspective, a number of existing constitutive models are classified and [...]

  • L. Guimarães, A. Gens, M. Sanchez, S. Olivella
    Communications in numerical methods in engineering (2006). Vol. 22 (8), pp. 849-859

    Abstract
    A fully coupled formulation combining reactive transport and an existing thermo‐hydro‐mechanical (THM) code is briefly described. Special attention has been given to phenomena [...]

  • A. Gens, S. Olivella
    Chinese journal of rock mechanics and engineering (2006). Vol. 25 (4), pp. 670-680

    Abstract
    A general formulation for the performance of coupled thermo-hydro-mechanical (THM) analysis is presented. A multi-phase and multi-species approach has been adopted for the [...]

  • E. Alonso, A. Gens
    Géotechniques (2006). Vol. 56 (3), pp. 203-210

    Abstract
    The motion of the Aznalcóllar dam slide, after the initiation of the failure, is examined in the paper. The moving mass remained essentially rigid, and Newton's [...]

  • A. Gens, E. Alonso
    Géotechniques (2006). Vol. 56 (3), pp. 185-201

    Abstract
    An analysis of the conditions that led to the failure of the Aznalcóllar dam is made in the paper. Pore water pressures prevailing in the foundation clay at the time [...]

  • E. Alonso, A. Gens
    Géotechniques (2006). Vol. 56 (3), pp. 165-183

    Abstract
    The paper describes the failure of Aznalcóllar dam, in southern Spain, in April 1998. The rockfill dam slid forward and released a flow of acid-saturated tailings. [...]

  • J. Vaunat, A. Gens
    Engineering Geology (2005). Vol. 81 (3), pp. 317-328

    Abstract
    A deep geological repository for nuclear waste requires the backfilling and sealing of shafts and galleries to block any preferential path for radioactive contaminants. The [...]

  • C. Mata, L. Guimarães, A. LEDESMA, A. Gens, S. Olivella
    Engineering Geology (2005). Vol. 81 (3), pp. 227-245

    Abstract
    A MX-80 sodium bentonite crushed granite rock mixture is being saturated in the Äspö Hard Rock Laboratory managed by SKB (the Swedish Company of nuclear waste management) [...]

  • M. Sánchez, A. Gens, L. Guimarães, S. Olivella
    International Journal for Numerical and Analytical Methods in Geomechanics (2005). Vol. 29 (8), pp. 751-787

    Abstract
    The constitutive model presented in this work is built on a conceptual approach for unsaturated expansive soils in which the fundamental characteristic is the explicit consideration [...]

  • J. Rutqvist, D. Barr, R. Datta, A. Gens, A. Millard, S. Olivella, C. Tsang, Y. Tsang
    International Journal of Rock Mechanics and Mining Sciences (2005). Vol. 42 (5-6), pp. 680-697

    Abstract
    The Yucca Mountain Drift Scale Test (DST) is a multiyear, large-scale underground heating test designed to study coupled thermal–hydrological–mechanical–chemical [...]

  • S. Olivella, A. Gens
    International Journal of Rock Mechanics and Mining Sciences (2005). Vol. 42 (5-6), pp. 667-679

    Abstract
    This paper presents thermo-hydro-mechanical (THM) analyses simulating the Drift Scale Test (DST) performed at Yucca Mountain. A double structure approach based on two [...]

  • D. Sheng, S. Sloan, A. Gens
    Computational Mechanics (2004). Vol. 33 (6), pp. 453-465

    Abstract
    This paper first presents a complete formulation of a constitutive model that deals with the irreversible behaviour of unsaturated soils under various loading and drying/wetting [...]

  • D. Sheng, D. Smith, S. Sloan, A. Gens
    International Journal for Numerical and Analytical Methods in Geomechanics (2003). Vol. 27, pp. 767-790

    Abstract
    The finite-element formulation and integration algorithms developed in Part I are used to analyse a number of practical problems involving unsaturated and saturated soils. [...]

  • D. Sheng, S. Sloan, A. Gens, D. Smith
    International Journal for Numerical and Analytical Methods in Geomechanics (2003). Vol. 27 (9), pp. 745-765

    Abstract
    This paper presents a complete finite-element treatment for unsaturated soil problems. A new formulation of general constitutive equations for unsaturated soils is first presented. [...]

  • G. Musso, E. Morales, A. Gens, E. Castellanos
    Applied Clay Science (2003). Vol. 23 (1-4), pp. 229-237

    Abstract
    The paper presents the experimental results of an investigation aimed at understanding the role played by the soil structure in the evolution of chemo-mechanical-coupled processes [...]

  • E. Romero, A. Gens, A. Lloret
    Geotechnique (2003). Vol. 53 (1), pp. 65-81

    Abstract
    The paper presents the results of an experimental study on the effects of suction and temperature on the volumetric behaviour of an unsaturated soil. Statically compacted [...]

  • D. Gallipoli, A. Gens, A. Sharma, J. Vaunat
    Géotechniques (2003). Vol. 53 (1), pp. 123-135

    Abstract
    The paper presents an elasto-plastic model for unsaturated soils that takes explicitly into account the mechanisms with which suction affects mechanical behaviour as [...]

  • E. Alonso, A. Gens, C. Delahaye
    Hydrogeology journal (2003). Vol. 11 (1), pp. 174-192

    Abstract
    The behaviour of an instrumented unstable slope in a profile of weathered overconsolidated clay has been analysed. Available field investigation data and laboratory tests [...]

  • A. Lloret, M. Villar, M. Sanchez, A. Gens, X. Pintado, E. Alonso
    Géotechniques (2003). Vol. 53 (1), pp. 27-40

    Abstract
    The paper reports the results of an experimental study carried out on a bentonite compacted to a dry density of up to 1·7 Mg=m3, a high value for this type of soil. [...]

  • E. Romero, A. Gens, A. Lloret
    Ingeniería Civil (Madrid) (2002). Vol. 127, pp. 115-120

    Abstract
    En el artículo se presentan algunos avances en técnicas experimentales relacionadas con la caracterización termo-hidro-mecánica de suelos parcialmente [...]

  • J. Pestana, A. Whittle, A. Gens
    International Journal for Numerical and Analytical Methods in Geomechanics (2002). Vol. 26 (11), pp. 1123-1146

    Abstract
    The undrained response of cohesive soils is of paramount importance in geomechanics and it has beenmodelled extensively for the last 50 years. In comparison, drained behaviour [...]

  • S. Olivella, A. Gens
    International Journal for Numerical and Analytical Methods in Geomechanics (2002). Vol. 26 (7), pp. 719-746

    Abstract
    A constitutive model for crushed salt is presented in this paper. A creep constitutive model is developed¿rst and compared with test results. The constitutive model [...]

  • A. Gens, L. Guimareas, A. García-Molina, E. Alonso
    Engineering Geology (2002). Vol. 64 (2-3), pp. 297-308

    Abstract
    The paper examines the interaction between host rock and a clay-based engineered barrier in the context of deep underground disposal of high-level radioactive waste. [...]

  • E. Romero, A. Gens, A. Lloret
    Geotechnical and Geological Engineering (2001). Vol. 19 (3/4), pp. 311-332

    Abstract
    The influence of temperature on the hydraulic properties of unsaturated clays is of major concern in the design of engineered barriers in underground repositories for [...]

  • L. Quiñones Huatangari, L. Ochoa Toledo, N. Kemper Valverde, O. Gamarra Torres, J. Bazán Correa, J. Delgado Soto
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (2), 40

    Abstract
    The artificial neural network (RNA) is a computational model that emulates the biological neural system in information processing. The originating models are suitable for [...]

  • Y. Núñez-Sánchez, A. González-Torres
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (2), 38

    Abstract
    Outsourcing allows organizations to reduce costs, optimize the use of resources, provide added value in services and goods, and concentrate on achieving the strategic objectives [...]

  • A. Andrade Cando, W. Quitiaquez Sarzosa, L. Toapanta
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (2), 36

    Abstract
    Low and medium solar heating systems used for domestic and industrial applications, such as water and space heating, usually utilize solar flat plate collectors in order to [...]

  • S. Pinzón, S. Yánez, M. Ruiz
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (1), 34

    Abstract
    This research shows a heuristic model for the design of scalable and reliable electrical distribution networks. The algorithms presented allow to optimize the location of [...]

  • D. Carrión, A. Ayo, J. González
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (1), 32

    Abstract
    Stability analysis in electrical power systems is based on the study in dynamic state of the voltage and frequency, since at the moment that there is some contingency it fluctuates [...]

  • M. Orellana Cordero, P. Cedillo
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (1), 30

    Abstract
    The detection of outliers in the field of data mining (DM) and the process of knowledge discovery in databases (KDD) is of great interest in areas that require support systems [...]

  • E. GARCIA TORRES
    Enfoque UTE - Scientific Engineering Journal (2020). Vol. 11, (1), 28

    Abstract
    The intelligent microgrids are an efficient alternative, which allows to supply the demand decreasing the losses of the electrical system and at the same time; the environment [...]