Examinando por Autor "0000-0001-6339-8050"
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Ítem Clasificación del estado superficial de pavimentos rígidos con imágenes digitales y técnicas de inteligencia artificialLandecho Muzuzu, Gabriell Alejandra; Pérez Quintero, Jeferson Stive; Fernández Gómez, Wilmar Darío; 0000-0001-6339-8050; Fernández Gómez, Wilmar Darío [0000-0001-6339-8050]Although there are different artificial intelligence methods for the detection and classification of damages to road infrastructure, the absence of research in the management and maintenance of rigid pavements is evident. This research focuses on establishing an artificial intelligence model for the evaluation of deterioration in rigid pavements by estimating the present serviceability index (PSI). An artificial intelligence algorithm was developed that processes image data to obtain a PSI value. This research was approached through 3 axes: 69 videos were captured from different sectors of Bogotá D.C., from which a library of 5046 images of different states of rigid pavement was obtained. These were classified into groups of 200 images by a group of engineers experienced in pavement management and allowed for the training of convolutional neural networks (VGG16, Resnet 50, OWN, EfficientNetB0). The best performance metrics, precision of 75% and loss of 0.68, were obtained from the implementation of the pre-trained EfficientNetB0 network. This work is a starting point for the management and maintenance of rigid pavements with novel technological tools, improving the amount of time and human effort employed daily.Ítem Ejecución de obra: construcción del corredor vial av. Polo, conexión entre la av. libertadores y la av. Boyacá en la altura de la calle 201Godoy Torres, John Alexander; Fernández Gómez, Wilmar Darío; 0000-0001-6339-8050The present document supports the internship carried out during the execution of work in the field work phase and support in topographic activities, in the construction of a road corridor with resources from the promoter Fidecomiso Lagos de Torca with the support of the urban development institute IDU. This road connection of 1.7 km is the main access road to the mega-project "Ciudad Lagos de Torca", which is the model of public-private participation in management of the District Administration to develop during the next 25 years, the northern edge of the city of Bogota.Ítem Modelo de aprovechamiento del subproducto del cultivo de papa en el ecosistema de páramo en Bogotá ColombiaVargas Cristancho, Luis Jairo; Fernández Gómez, Wilmar; 0000-0001-6339-8050; Fernández Gómez, Wilmar [0000-0001-6339-8050]Since the first environmental movements at the end of the sixties, the importance of caring for ecosystems has been discussed, the environmental crisis becomes evident and questions begin about the impacts generated by the non-adoption of measures to maintain the planet's ability to maintain itself and produce enough goods to be consumed by humanity. The effects of ecological damage caused by human activities are reflected, for example, in the increase in greenhouse gases due to the combustion of waste and the poor disposal of biomass. Although, high mountain ecosystems are areas protected by regulations, crops such as potatoes are predominant in these areas due to their climatic adaptation, In particular, this crop generates a large amount of waste or by-products that are being improperly disposed of on the ground, water sources or into the air through burning. With the purpose of estimating the amount of potato crop residues in the páramo ecosystem, the analysis of the dynamics of the crop production system was carried out in the Vensim software. As a result, the research presented a model for the use of the by-product where two uses of the waste are shown within the framework of sustainable development. In the first case, the model for the use of the by-product of the harvest of this tuber for organic fertilization is presented, in the second case, the use is shown through the generation of alternative energy through biogas. In both cases, the contribution to the Sustainable Development of the communities is evident.Ítem Seguimiento a tramos de vía de bajos volúmenes con mezclas elaboradas con RAP provenientes de la UMV en la ciudad de BogotáRodríguez Orozco, Kevin Dailuber; Vargas Forero, Cristian Leonardo; Fernández-Gómez, Wilmar Darío; 0000-0001-6339-8050In the last twenty years, the study and use of Recycled Asphalt Pavement (RAP) in the construction and rehabilitation of pavements have grown due to its economic and environmental benefits. RAP contributes to waste reduction and decreases the demand for virgin materials. The focus of this thesis was the performance evaluation of RAP on a low-traffic volume road in the rural area of Bogotá. This road was treated with RAP sourced from the La Esmeralda production site of the Road Maintenance Unit (UMV). The recycled material underwent various tests, and a working formula was developed for its application on different roads. This phase was carried out in the initial stage of the research program. For the performance evaluation stage of the pavement under study, a road inventory system was employed, incorporating GPS receivers and high-definition cameras developed by the District University. During the evaluation, parameters such as pathologies, material quality, and construction processes were measured. The inspection compared these data with design standards, gathering information on construction and associated costs. The results contribute to understanding the behavior of RAP on low-traffic volume roads, providing a foundation for future decisions in the design and construction of sustainable pavements that promote the use of recycled materials in the road infrastructure of Bogotá.