Evaluación de la capacidad de arrastre y transporte de sedimentos en la microcuenca de la quebrada Agua Azul, Dosquebradas, Risaralda
| dc.contributor.advisor | Álzate Buitrago, Alejandro | |
| dc.contributor.author | Lemus Vivas, David Ricardo | |
| dc.contributor.author | Hernández Rodríguez, Camilo | |
| dc.coverage.spatial | Pereira | spa |
| dc.creator.email | camilo-hernandez@unilibre.edu.co | spa |
| dc.date.accessioned | 2025-07-15T21:52:08Z | |
| dc.date.available | 2025-07-15T21:52:08Z | |
| dc.date.created | 2025-01-24 | |
| dc.description.abstract | El estudio se centra en la caracterización de la quebrada Agua Azul, ubicada en Dosquebradas, Risaralda, con el propósito de determinar su capacidad de arrastre y transporte de sedimentos, así como evaluar la influencia de factores como la granulometría de los sedimentos, la pendiente del cauce, la energía del flujo y las lluvias ocurridas en este proceso. Un propósito clave de la investigación fue valorar la capacidad de arrastre de cantos en función de las precipitaciones registradas, identificando patrones de desplazamiento y estabilidad en diferentes secciones hidráulicas. Los objetivos principales incluyen la medición de caudales, la caracterización granulométrica de los sedimentos y el análisis del desplazamiento de clastos en diferentes secciones hidráulicas. Para llevar a cabo esta investigación, se emplearon técnicas de aforo de caudales y análisis granulométrico, así como el monitoreo del desplazamiento de clastos representativos tras eventos de precipitación. Se realizaron mediciones en tres secciones hidráulicas (S1, S2 y S3) entre junio y octubre de 2024, registrando datos sobre el desplazamiento, peso y redondez de los clastos, y se estimó la capacidad de arrastre utilizando las fórmulas de Shields y Duboys, que permiten calcular la velocidad crítica para el movimiento de partículas y la tensión de corte en el lecho. Los hallazgos más significativos revelan que la quebrada presenta una alta variabilidad en la capacidad de transporte de sedimentos, influenciada por la pendiente, el caudal y la intensidad de las lluvias. En la sección con mayor pendiente y caudal (S2), se observó una mayor capacidad de arrastre, lo que sugiere que los clastos más pequeños y redondeados tienden a moverse más durante eventos de alta precipitación, mientras que los clastos grandes y angulosos permanecen más estables. Los datos de caudales mostraron variaciones significativas entre las secciones, con S1 registrando 0.11 m³/s, S2 con 0.20 m³/s y S3 con 0.03 m³/s. Además, se identificó una distribución de tamaños de sedimentos que varía entre las secciones, destacando que en S1 el 55% de los sedimentos oscila entre 438 y 748 g, mientras que en S2, el 75% se encuentra entre 223 y 943 g. Estos resultados son importantes para la gestión de riesgos y la planificación ambiental, ya que permiten comprender mejor la dinámica del transporte de sedimentos en la quebrada y su relación con la erosión en áreas montañosas. En conclusión, el estudio proporciona una base sólida para el diseño de medidas de mitigación y conservación en la quebrada Agua Azul, considerando la importancia de las microcuencas en la regulación del ciclo del agua y la sedimentación. | spa |
| dc.description.abstractenglish | The study focuses on the characterization of the Agua Azul stream, located in Dosquebradas, Risaralda, with the purpose of determining its sediment drag and transport capacity, as well as evaluating the influence of factors such as sediment granulometry, channel slope, flow energy and rainfall in this process. A key purpose of the research was to assess the pebble drag capacity based on the recorded rainfall, identifying patterns of displacement and stability in different hydraulic sections. The main objectives include flow measurement, granulometric characterization of sediments and analysis of clast displacement in different hydraulic sections. To carry out this research, flow gauging and granulometric analysis techniques were used, as well as monitoring the displacement of representative clasts after precipitation events. Measurements were made in three hydraulic sections (S1, S2 and S3) between June and October 2024, recording data on clast displacement, weight and roundness, and the drag capacity was estimated using the Shields and Duboys formulas, which allow the calculation of the critical velocity for particle movement and the shear stress in the bed. The most significant findings reveal that the stream presents a high variability in sediment transport capacity, influenced by the slope, flow rate and rainfall intensity. In the section with the highest slope and flow rate (S2), a higher drag capacity was observed, suggesting that smaller and rounder clasts tend to move more during high rainfall events, while large and angular clasts remain more stable. The flow data showed significant variations between sections, with S1 recording 0.11 m³/s, S2 with 0.20 m³/s and S3 with 0.03 m³/s. In addition, a sediment size distribution was identified that varies between sections, highlighting that in S1 55% of the sediments ranged between 438 and 748 g, while in S2, 75% were between 223 and 943 g. These results are important for risk management and environmental planning, as they allow a better understanding of the dynamics of sediment transport in the stream and its relationship with erosion in mountainous areas. In conclusion, the study provides a solid basis for the design of mitigation and conservation measures in the Agua Azul stream, considering the importance of micro-basins in regulating the water cycle and sedimentation. | spa |
| dc.description.sponsorship | Universidad Libre Seccional Pereira -- Facultad de Ingeniería -- Ingeniería Civil | spa |
| dc.format | spa | |
| dc.identifier.uri | https://hdl.handle.net/10901/31509 | |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.coar | http://purl.org/coar/access_right/c_abf2 | spa |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 2.5 Colombia | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | spa |
| dc.subject | Capacidad de arrastre | spa |
| dc.subject | Caracterización granulométrica | spa |
| dc.subject | Eventos de precipitación | spa |
| dc.subject | Hidráulica fluvial | spa |
| dc.subject | Microcuencas montañosas | spa |
| dc.subject | Transporte de sedimentos | spa |
| dc.subject.subjectenglish | Carrying capacity | spa |
| dc.subject.subjectenglish | Granulometric characterization | spa |
| dc.subject.subjectenglish | Precipitation events | spa |
| dc.subject.subjectenglish | Fluvial hydraulics | spa |
| dc.subject.subjectenglish | Mountain micro-basins | spa |
| dc.subject.subjectenglish | Sediment transport | spa |
| dc.title | Evaluación de la capacidad de arrastre y transporte de sedimentos en la microcuenca de la quebrada Agua Azul, Dosquebradas, Risaralda | spa |
| dc.title.alternative | EVALUATION OF SEDIMENT TRANSPORT AND EROSION CAPACITY IN THE AGUA AZUL STREAM MICRO-BASIN, DOSQUEBRADAS, RISARALDA | spa |
| dc.type.driver | info:eu-repo/semantics/bachelorThesis | spa |
| dc.type.hasversion | info:eu-repo/semantics/acceptedVersion | spa |
| dc.type.local | Tesis de Pregrado | spa |
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