Exploració per autor "Pinyol Puigmartí, Núria Mercè"
Ara es mostren els items 32-51 de 77
-
Image-based measurements of degree of saturation
Parera Morales, Ferran; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (E3S Web of Conferences, 2020)
Text en actes de congrés
Accés obertA method based on SWIR images is proposed for measuring the degree of saturation in soils. This method is especially suitable for use in experiments conducted in the facilities of a common geotechnical laboratory. The ... -
Incorporating a microstructural state variable in constitutive modelling
Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo; Gens Solé, Antonio (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe selection of constitutive variables has been extensively discussed when modeling unsaturated soils. In general, suction and degree of saturation have been involved in the definition of constitutive variables. Recently, ... -
Influence of temperature on residual strength of clayey soils
García Núñez, Luis Miguel; Pinyol Puigmartí, Núria Mercè; Lloret Morancho, Antonio; Soncco Halanocca, Edwin Aristides (Elsevier, 2023-09)
Article
Accés obertThis paper presents the influence of temperature on the residual strength by analyzing shearing tests carried out in a temperature- and velocity-controlled ring shear apparatus. Temperature was applied in steps of cooling ... -
Influencia del desembalse en la estabilidad de una ladera: caso real
Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo; Corominas Dulcet, Jordi; Moya Sánchez, José (2013)
Text en actes de congrés
Accés obertUn aspecto crítico a controlar en la gestión de embalses es la velocidad de descenso de nivel de agua debido al riesgo de inestabilidades en las laderas que lo forman. Este artículo presenta el estudio realizado para conocer ... -
Internal progressive failure in deep-seated landslides
Yerro Colom, Alba; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2015-11)
Article
Accés obertExcept for simple sliding motions, the stability of a slope does not depend only on the resistance of the basal failure surface. It is affected by the internal distortion of the moving mass, which plays an important role ... -
Introduction: advances in landslide understanding
Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (2019-09)
Article
Accés obertLandslide research covers an extremely wide range of aspects: from triggering mechanisms to response of the unstable mass after failure, including transport, deposition, and interaction with protective structures. Advances ... -
Landslide motion assessment including rate effects and thermal interactions: revisiting the Canelles landslide
Alvarado Bueno, Mauricio; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2019-09)
Article
Accés obertThe re-activation of a large (40 Mm3) landslide on the valley slopes of a reservoir motivated a research initiative to estimate the risk of a fast-sliding mass moving into the reservoir. A previous simplified analysis had ... -
Landslides in reservoirs and dam operation
Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (CRC Press, 2011)
Capítol de llibre
Accés restringit per política de l'editorialRisk of landslide ocurrence in reservoirs is enhanced by the submergence of the slope toe and by rapid drawdown conditions. Instabilities may endanger the dam itself. They may also lead to strong wave motion in the reservoir ... -
Landslides in reservoirs: a coupled thermo-hydromechanical approach
Pinyol Puigmartí, Núria Mercè (Universitat Politècnica de Catalunya, 2010-09-13)
Tesi
Accés obertLa ocurrencia de deslizamientos es uno de los principales problemas presentes durante el diseño, construcción y explotación de presas y embalses. La inundación del pie de los taludes, así como el desembalse rápido, pueden ... -
Lechago dam. A case study
Alonso Pérez de Agreda, Eduardo; Olivella Pastallé, Sebastià; Pinyol Puigmartí, Núria Mercè (Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
Comunicació de congrés
Accés obertLechago dam (Teruel, Spain) is a 40 m high zoned earth and rockfill dam sitting on soft continental deltaic deposits. A relatively narrow central clay core is stabilized by wide rockfill shoulders. The dam was well ... -
Lechago dam: a case study
Alonso Pérez de Agreda, Eduardo; Olivella Pastallé, Sebastià; Pinyol Puigmartí, Núria Mercè (2011)
Text en actes de congrés
Accés restringit per política de l'editorialLechago dam (Teruel, Spain) is a 40 m high zoned earth and rockfill dam founded on soft continental deltaic deposits. A relatively narrow central clay core is stabilized by wide rockfill shoulders. The dam was completed ... -
Liquefaction-induced flow-like landslides: the case of Valarties (Spain)
Carluccio, Gaia di; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo; Hurlimann Ziegler, Marcel (2023-01)
Article
Accés obertThis paper examines a flowslide involving a glacial deposit of low-plasticity silty sand triggered by a karstic spring after a rainfall period. The work aims at explaining the triggering, propagation and kinematics of ... -
Massive, continuous and non-invasive surface measurement of degree of saturation by shortwave infrared images
Parera Morales, Ferran; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2021-06)
Article
Accés obertShort wave infrared (SWIR) images provide an accurate procedure to measure the degree of saturation (Sr) of soils. Changes in Sr result in reflectance changes which were recorded by a special digital camera optimized for ... -
Mathematical modelling of slopes
Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè; Yerro Colom, Alba (Elsevier, 2014)
Article
Accés obertThe paper discusses first the effect of rainfall on the stability of slopes and it focusses on the role of permeability. Existing or induced discontinuities are shown to have a remarkable effect on the slope safety. Also, ... -
Mecanismos que controlan la velocidad de los deslizamientos
Pinyol Puigmartí, Núria Mercè; Scoppettuolo, M.E.; Alonso Pérez de Agreda, Eduardo (International Centre for Numerical Methods in Engineering (CIMNE), 2017)
Comunicació de congrés
Accés obertLos deslizamientos activos a menudo mantienen velocidades lentas o moderadas (del orden de mm/día o cm/día) durante un largo periodo de tiempo. Las variaciones de la velocidad están relacionadas con los cambios en las ... -
Microstructure of compacted low-plasticity soils: the initial fabric and its evolution on stress and suction paths
González Blanco, Laura; Romero Morales, Enrique Edgar; Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (EDP Sciences, 2023)
Article
Accés obertSoils used in earthworks undergo different hydro-mechanical paths due to the compaction and construction process, the change in climatic conditions or the groundwater level oscillations. Their hydro- mechanical behaviour ... -
Modelling compacted soils
Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2011)
Text en actes de congrés
Accés restringit per política de l'editorialMechanical and hydraulic compacted soil properties for a given soil mineralogy are essentially controlled by the attained dry density, water content and microstructure. Basic compaction conditions (wet or dry of optimum, ... -
Modelling creeping and catastrophic failure of thermo-mechanically driven landslides
Zervos, Antonis; Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (Springer, 2017)
Comunicació de congrés
Accés restringit per política de l'editorialFrictional heating of the slip zone is a possible explanation for why some catastrophic landslides moved so fast and so far. The transition from a creeping phase to catastrophic collapse governed by frictional heating is ... -
Modelling large deformation problems in unsaturated soils
Yerro Colom, Alba; Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (E3S Web of Conferences, 2016)
Text en actes de congrés
Accés obertApplications of unsaturated soil mechanics often involve large deformations and displacements. This is the case of collapse behaviour of low density soils or the unrestrained swelling of expansive clays. Rain induced ... -
Modelling progressive failure with MPM
Yerro Colom, Alba; Alonso Pérez de Agreda, Eduardo; Pinyol Puigmartí, Núria Mercè (CRC Press Taylor & Francis Group, 2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work, the progressive failure phenomenon is studied using the Material Point Method (MPM). MPM is categorized as a method in between the classical Finite Element Method (FEM) and the truly particle methods. It is ...