A5084097018- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Underground Structures
- Seismic Performance and Analysis
- Geotechnical Engineering and Soil Stabilization
- Landslides and related hazards
- Structural Health Monitoring Techniques
- earthquake and tectonic studies
- Seismic Waves and Analysis
- Dam Engineering and Safety
- Fluid Dynamics Simulations and Interactions
- Soil and Unsaturated Flow
- Geotechnical Engineering and Analysis
- Geological and Tectonic Studies in Latin America
- Hygrothermal properties of building materials
- Plant Water Relations and Carbon Dynamics
- Flood Risk Assessment and Management
- Metal Forming Simulation Techniques
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Fatigue and fracture mechanics
- Polysaccharides Composition and Applications
- Geotechnical and construction materials studies
- Soil and Land Suitability Analysis
- Tree Root and Stability Studies
- Sustainable Building Design and Assessment
- Sugarcane Cultivation and Processing
Universidad del Norte
2015-2024
University of British Columbia
2019
Rensselaer Polytechnic Institute
2010-2017
Mansoura University
2017
University at Buffalo, State University of New York
2010
BGC Engineering (Canada)
2010
Hill Engineering (United States)
2010
University of California, San Diego
2010
Consejo Nacional de Investigaciones Científicas y Técnicas
2010
Centrifuge modeling of pore pressure buildup in a sand deposit as result shaking is evaluated by comparison with large-scale experiment. In Test SG-1, 5.6-m-thick, mildly sloping hydraulic fill clean Ottawa Dr=40%, was subjected to 5 s low-intensity base (<0.02g) that induced excess pressures short liquefaction. Three centrifuge experiments using various soil deposits and saturation fluids were conducted compared the test. One these simulations used same Dr=40% prototype, viscous fluid, dry...
This paper examines in detail the mechanics of lateral spreading observed a full-scale test sloping saturated fine sand deposit, representative liquefiable, young alluvial and hydraulic fill sands field. The was conducted using 6-m tall inclined laminar box shaken at base. At end shaking, nearly whole deposit liquefied, ground surface displacement had reached 32 cm. presented analysis utilizes unique set results, DH, from three independent techniques. One these techniques—motion tracking...
ABSTRACT Crustal earthquakes are some of the main contributors to seismic hazard in northern South America (NoSAm). There is evidence historical crustal events with epicenters near populated cities, such as 1999 Mw 6.2 Coffee Region earthquake, whose damages added up 1.9% Colombia’s gross domestic product and reported about 1200 deaths. Because global ground-motion models (GMMs) routinely used assessments region biased respect available records, this article presents a regional GMM developed...
Accurate estimation of shear wave velocity is necessary in most geotechnical earthquake engineering applications. This paper details two different methodologies implemented for the profile soil deposits. The first method employs bender elements, whereas second relies on a system identification technique and use acceleration recordings. In order to compare techniques, centrifuge experiments were conducted using saturated Ottawa F#55 sand one-dimensional laminar container. was deposited at...
Subduction ground motions in northern South America are about a factor of 2 smaller than the for similar events other regions. Nevertheless, historical and recent large-interface intermediate-depth slab earthquakes moment magnitudes M w = 7.8 (Ecuador, 2016) 7.2 (Colombia, 2012) evidenced vast potential damage that vulnerable populations close to earthquake epicenters could experience. This article proposes new empirical ground-motion prediction model subduction America, regionalization...
This article proposes a semiempirical model to estimate seismic site effects based on predominant-period classification scheme for application in earthquake ground-motion models (GMMs). The proposed introduces the use of peak amplitude average horizontal-to-vertical ratio spectral response obtained from records. is implemented within GMM estimated using records northern South America. research compares performance function with other formulations V S30 or predominant period. approach yields...
Swelling behavior of clays is great importance for numerous engineering applications due to the prevalence expansive around world. Expansive are present in Mexico City, United States, Australia, Africa and South America, among others. In some cases, these types could swell pressure values greater than 400 kPa. this technical note, correlation equations developed estimate using laboratory tests performed on swelling city Barranquilla, Colombia. Correlations based Atterberg limits water...
In this study, we investigate the performance of several parameters as estimators seismic site effects for sites in northern South America. Investigated include conventional time-averaged shear wave velocity upper 30 m (VS30), predominant period site, and horizontal-to-vertical spectral ratios. To assess these parameters, estimate amplification waves within shallow soil layers (i.e., effects) at recording stations across The is estimated by analyzing residuals calculated from ground-motion...
This study presents the numerical results of a series laboratory and dynamic centrifuge tests conducted by team at Universidad del Norte, as part LEAP-2022 project. The soil's mechanical behavior was simulated using pressure-dependent multi-surface plasticity constitutive model, which carefully calibrated based on cyclic soil performed Ottawa F-65 sand. These covered wide range initial densities, effective stresses, stress ratios. comparison between element revealed that adopted model...
Resilient modulus (MR) is one of the key properties used to characterise and quantify mechanical behaviour soil materials for pavement design purposes. Standard MR test procedures are often complex, lengthy, cost-prohibitive most routine daily applications. Therefore, correlative models relating easy-to-obtain basic index properties, such as Atterberg limits, have been historically predict estimate MR; however, not always effective obtaining correct values. Alternatively, California bearing...
This paper presents an overview of a framework to assess the structural integrity and health earthen levees. The is being developed through project supported by NIST (National Institute Standards Technology) relies on remote sensing field monitoring data levees during environmental loading conditions natural processes degradation. consists levee displacements obtained using satellite-based interferometric synthetic aperture radar (InSAR), Global Position System (GPS) receivers,...