Author page: adminr

Se presenta un caso de optimización de cimentaciones mediante el análisis integrado de información geotécnica y pruebas de carga en pilotes. El estudio incluyó ensayos de carga dinámica en pilotes preexcavados e hincados, junto con una detallada caracterización geotécnica que permitió validar parámetros y resultados entre métodos. Esta estrategia facilitó una evaluación ágil y consistente…

Bogotá sits atop a large fluvio-lacustrine sedimentary basin filled over the past 3.2 million years. The basin transitions from granular alluvial-colluvial soils at the edges to very soft lacustrine clays and silts in the center, with sediment thicknesses up to 500 m and soft soils dominating the upper 50–150 m. Strong motion records indicate significant seismic amplification,…

Se presentan resultados de ensayos en modelos físicos a escala natural sobre la interacción suelo-estructura en la cimentación de tuberías rígidas y flexibles de 0,6 m de diámetro. Los modelos fueron desarrollados en un montaje especial en el laboratorio de estructuras de la Universidad Javeriana, donde se aplicaron cargas verticales a tuberías enterradas y se midieron…

A major landslide in 2019 on a terrace flank in Colombia’s Western Cordillera blocked a key road for months and impacted a recently completed tunnel located 60 m deep and 40 m horizontally from the slope face. Over 120,000 m³ of material were removed to reopen the road. This study presents a geophysical investigation to support stability and…

This paper presents the geotechnical characterization of a 400 m long, 40 m deep permanent excavation for the Mall Plaza project in Manizales, Colombia. The site, located in steep terrain within a densely populated area, is intersected by a major regional fault and its ~100 m wide damage zone. Subsurface materials include graphitic schists, with a diorite intrusion…

In linear infrastructure projects, such as bridges, the spatial variability of soil properties—particularly in soft lacustrine clays like those in northern Bogotá—significantly influences foundation design. Due to the limited penetration of active methods, passive surface wave techniques, specifically SPAC, were applied to characterize deep soil layers. Surveys at three sites used L-shaped and linear arrays…

El análisis de relaciones espectrales HVSR se ha utilizado comúnmente para identificar la frecuencia dominante de suelos. Aunque inicialmente se interpretó como una medida de la amplificación de ondas de corte (Nakamura, 1989), estudios recientes muestran que la respuesta está dominada por ondas superficiales. En registros de sísmica pasiva, el cociente H/V promedio puede estimarse…

This study presents the dynamic characterization of a 363-meter curved viaduct with seismic isolation, located in a moderate seismic hazard zone near Bogotá, Colombia. The segmental structure comprises a post-tensioned hollow-core box girder on deep-founded concrete piers, with low-damping elastomeric isolators. The program included ambient vibration measurements, geophysical soil characterization, and site-specific ground motion development.…