Programa de Doctorat en Enginyeria del Terreny: Recent submissions
Now showing items 1-20 of 157
Coupled modelling and sustainability assessment of polymeric reinforced soil retaining structures subjected to environmental conditions
(English) The focus of this Thesis are reinforced soil structures with polymeric (or geosynthetic) reinforcement elements. These materials are known for their rate-dependent behaviour, that is, time, load, temperature, ...
A multitemporal and multiscale analysis of soil erosion and sediment transport. Application to the badlands in the Upper Llobregat River Basin
(English) Badlands are among the most active geomorphic environments on Earth, exhibiting extreme erosion rates, sparse vegetation, and steep, deeply dissected slopes. In mountainous Mediterranean regions, seasonal climate ...
Numerical modelling of unsaturated soils with the material point method
(English) The Material Point Method (MPM) is presented as an advanced numerical method used to simulate geotechnical problems subjected to large deformations and soil-structure interaction problems, such as landslides, ...
Thermo-hydro-mechanical-chemical impacts of high-temperature aquifer thermal energy storage
(English) High Temperature Aquifer Thermal Energy Storage (HT-ATES) involves the injection and extraction of non-isothermal fluids into aquifers and triggers thermo-hydro-mechanical-chemical processes. These processes must ...
Multi-scale hydro-mechanical and gas transport characterisation of granular bentonite
(English) Bentonite-based materials with low permeability, great water retention and self-sealing properties have been extensively used for engineered barriers in waste disposal facilities. Several typologies of bentonites ...
Susceptibility assessment of shallow landslides at the regional scale using physically-based models and probabilistic approaches
(English) This thesis focuses on the evaluation of shallow landslide susceptibility in mountainous areas induced by rainfall or seismic events. The primary aim is to efficiently assess regional-scale landslide susceptibility ...
A micromechanical investigation of pile set-up effect in sands
(English) Driven piles in granular soils gain shaft capacity after installation in a phenomenon known as “pile set-up”. Set-up effects in sand have not been incorporated into design procedures largely because the underlying ...
3D FEM meso-level analysis of sulphate attack in concrete: new results and developments using parallel HP computing
(English) When concrete is subject to an environment characterised by a high humidity index and rich in sulphate ions, a concrete degradation process may be initiated due to External Sulphate Attack (ESA). The sulphate ...
THM numerical modeling of multiphase flow in fractured rock masses using zero-thickness interface elements
(English) To address the impacts of climate change, several measures have been suggested among which utilizing renewable energy sources such as geothermal energy and implementing technologies such as hydrogen storage or ...
Elementos junta/interfase mortar con nudos no coincidentes. Aplicación al análisis de discontinuidades y contactos en geomecánica
(English) The general objectives of this thesis are, on the one hand, to extend the formulation of the traditional zero-thickness interface elements in small deformations to the case of non-coincident meshes and, on the ...
Constitutive models for unsaturated soils. A thermodynamic approach
(English) Unsaturated soils are particular instances of porous materials, which are characterized by a solid skeleton and a number of fluids that can move through the skeleton. At the microscale, a porous material is made ...
Methodologies for improving groundwater access in rural areas: towards the improvement of human development in low and middle-income countries
(English) Sustainable groundwater management in rural areas presents multifaceted challenges stemming from hydrogeological complexities, socio-economic disparities, and governance issues. This thesis aims to provide ...
Aportaciones de técnicas geomáticas al análisis de los desprendimientos rocosos
(English) The term rockfall applies to blocks or masses of rock that, after separating from a steep wall, experience free fall and then impact against the ground, with the consequent rebound and possible rolling and sliding ...
Formació de despreniments rocosos a la muntanya de Montserrat
(English) In the Montserrat Mountain, high hazard of rockfall and high human exposure by visitors to both Monastery and Natural Park converge. It is a relevant geological risk difficult to mitigate since it is necessary ...
Particle methods for reactive transport modeling in heterogeneous aquifers
(English) Aquifers are naturally heterogeneous systems across multiple scales, which poses a known difficulty for grid-based solvers of solute transport. When advection is the dominant transport mechanism, concentrations ...
On the evaluation of mixing in heterogeneous porous media: from laboratory characterization to the design of engineered chaotic flows for practical application
(English) Groundwater is now under high stress levels and its quality and quantity arise as one of the most interesting and necessary topics our community should address. This doctoral thesis is focused on the quality of ...
Experimental and numerical analysis of the unsaturated soil shrinkage and swelling behaviour under different compaction conditions
(English) The thesis presents part of an ongoing nvestigation on the Thermo-Hydro-Mechanical (THM) behaviour and cracking of deformable unsaturated soils undergoing cycles of drying and wetting. An experimental approach ...
Visco-plasticity of zero-thickness interfaces with softening, and application to the study of fault reactivation
(English) In the current context of both energy and environmental needs, there has been an increase in activities related to extraction and injection of fluids in the underground. It is known that a possible consequence ...
THM coupled behaviour of a deep poorly indurated argillaceous formation
(English) Deep geological disposal of heat-emitting and long-lived radioactive waste is the solution internationally accepted that offers the most viable and safest way to manage this kind of wastes. Accordingly, the ...
Numerical modeling of geological carbon sequestration : enhanced dissolution in randomly heterogeneous media
Geological Carbon Sequestration (GCS) plays a major role in mitigating the global warming due to the increasing concentration of CO2 in atmosphere. It is important to understand the GCS process to analyze and predict its ...
