A5027850433- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Soil Stabilization
- Geotechnical Engineering and Underground Structures
- Soil and Unsaturated Flow
- Landslides and related hazards
- Probabilistic and Robust Engineering Design
- Geotechnical Engineering and Soil Mechanics
- Landfill Environmental Impact Studies
- Civil and Structural Engineering Research
- Grouting, Rheology, and Soil Mechanics
- Structural Engineering and Vibration Analysis
- Innovative concrete reinforcement materials
- Concrete and Cement Materials Research
- Geotechnical and Geomechanical Engineering
- Masonry and Concrete Structural Analysis
- Underground infrastructure and sustainability
- Dam Engineering and Safety
- Mining and Gasification Technologies
- Structural Behavior of Reinforced Concrete
- Building materials and conservation
- Risk and Safety Analysis
- Groundwater and Watershed Analysis
- Structural Load-Bearing Analysis
- Tailings Management and Properties
- Geological Modeling and Analysis
Universidade do Porto
2014-2024
Leibniz University Hannover
2018-2019
The improvement of geotechnical properties is often achieved by the addition traditional binders, such as cement or lime. However, use binders implies a considerable financial and environmental cost that needs to be mitigated. An unconventional solution, similar in terms performance but more environmentally friendly, consists made from alkaline activated industrial residues. technique on activation raw materials (such fly ash blast furnace slag) rich Si, Al, even Ca, with high pH solutions....
Abstract In recent years there has been renewed interest on integral abutment bridges (IABs), mainly due to their low construction and maintenance cost. Owing the monolithic connection between deck abutments, is strong soil‐structure interaction bridge backfill under both thermal action earthquake shaking. Although some of regions where IABs are adopted qualify as highly seismic, limited knowledge dynamic behaviour vulnerability ground To develop a better understanding seismic IABs, an...
In slope stability analysis, the high degree of uncertainty associated with design parameters has led to increasing use reliability-based approaches as a means evaluating combined effects such uncertainties on structure performance. this study, reliability level geosynthetic-reinforced steep slopes designed according Eurocode 7 (EC7), without any additional margin safety, was assessed using commercially available Slide 6.0 software based Monte Carlo simulation. To validate EC7 partial factor...
The renewal imposed by the Eurocodes regarding methodologies of safety evaluation requires a statistical analysis variability ground geotechnical parameters. However, studies published in reviewed literature do not cover typical materials from northeast region Portugal—residual soils granite—to which strong heterogeneity is associated. Hence, characterization natural granite residual soil Porto has been made through significant amount experimental tests, focusing on its geomechanical...
This paper tries to characterize volcanic rocks through the development and application of an empirical geomechanical system. Geotechnical information was collected from samples several Atlantic Ocean islands including Madeira, Azores Canarias archipelagos. An rock classification system termed as (VRS) is developed presented in detail. Results using VRS are compared with those obtained traditional mass rating (RMR) Data mining (DM) techniques applied a database islands. Different algorithms...
Multivariate information of soil parameters is quite important for the design and risk assessment geotechnical engineering problems. It necessary to have an accurate realistic statistical multivariate model representing properties thus evaluating conditions. Thus, advanced modeling could help improve practice. In this paper, asymmetric copulas are introduced data. Compared extensive previous research on use symmetric data, study focusing capturing dependencies among natural parameters, which...
The seepage analysis in geotechnical problems, namely excavations, was typically performed assuming saturated conditions the ground. It is now know that flow non part of ground assumes also relevant importance and hence it vital to characterize its behaviour. Soil Water Characteristic Curve (SWCC) soil probably most important parameter defining this behaviour particularly for estimating permeability soil. This paper presents definition SWCC a granite residual using pressure plates filter...
To prevent catastrophic consequences of slope failure, it can be effective to have in advance a good understanding the effect both, internal and external triggering-factors on stability. Herein we present an application advanced Bayesian networks for solving geotechnical problems. A model soil slopes is constructed predict probability failure analyze influence induced-factors results. The paper explains theoretical background enhanced networks, able cope with continuous input parameters,...
The influence of suction on the mechanical behaviour unsaturated chemically stabilised soils is still mostly unknown and unquantified. This also motivated by difficulties associated with experimental procedure required to fully characterise response soil, including its direct traditional strength tests. present paper presents soil water retention curves obtained for a Portuguese before after being Portland cement (OPC) an alkali-activated (AAC). Saturated undrained triaxial tests were...
A influência da sucção no comportamento de solos estabilizados quimicamente não foi ainda consistentemente quantificada, situação também motivada pelas dificuldades procedimento experimental para caracterizar a resposta saturada. Este artigo apresenta curvas retenção obtidas um solo estabilizado com cimento Portland ou alcalino. Apresentam-se ensaios triaxiais, as mesmas condições cura, até aos 90 dias. Desconhecem-se tentativas anteriores solo-cimento alcalino; os resultados obtidos mostram...
Mine tailings are usually materials with particle sizes in the range of silts, frequently exhibiting very low consistency. This low-consistency condition poses challenges when trying to reconstitute specimens for triaxial testing. The first part this work presents a description main geotechnical properties mine used tests and difficulties associated Next, some developments, terms equipment testing procedure, presented: design compaction mould, specimen preparation using moist tamping...
This paper is a contribution for the application of Eurocode 7 design methodology and analysis related features in geotechnical engineering, such as uncertainty, risk reliability. The applied to strip foundation resting on relatively homogeneous c-φ soil, different approaches are compared deterministic semi-probabilistic solutions. A reliability assessment performed conditions, particularly selecting characteristic values coefficients variation soil properties. Several uncorrelated...
Bayesian Network (BN) is an efficient model tool for approximate reasoning based on machine learning. It has been widely used supporting the decision in many engineering applications such as geotechnical engineering. However, current studies BN are mostly uncertainty quantification and decision-making, while sensitivity analysis BN, which may provide much more insights not received attention. The research of mainly focuses local method, there a need to develop global (GSA) both forward...