B 1 Journal of Building Technology, 2023, Volume5, Issue1 DOI: 10.32629/jbt.v5i1.1171 ISSN Online: 2717-5103 ISSN Print: 2705-1390 Geotechnical Zoning of the Soils of the City of Valledupar Using a GIS Olga Vanessa Palacio Pacheco, Gustavo Cadena Carrillo, Eberto Rafael Ortega Sinning, Angélica Patricia Vanegas Padilla Popular University of Cesar, Colombia Abstract: The geotechnical zoning of the soils was carried out in Valledupar (Cesar) by collecting data in various soil laboratories and obtaining samples. The research database was created. The types of soils found were SC, SM and GW identified in all the communes of the city. The water table was found at a depth of 1.2 m. The document contains the necessary information for geotechnical studies of the area where it is concluded that the city can support building foundations of more than 10 levels, in areas with high percentages of gravel, and these areas will be the ones with the highest incidence when increasing coverage of aqueduct and sewerage networks. It is the first geotechnical research study through geographic information models in Valledupar, which indicates the generation of a technical and bibliographic resource for quick consultation. Key words: mapping; geotechnics; types of soils; GIS 1. Introduction According to the 2005 census, the population of the city of Valledupar was 354,449.0 inhabitants, and projections for the year 2019 are around 493,342.0 inhabitants [1], which shows that there is a significant growth in the population, and has led to a hasty increase in housing construction, road coverage, water and sewage networks throughout the city. Therefore, it is necessary to know how the soils are constituted, since, in order to carry out this type of engineering and infrastructures according to the Colombian standards applicable to each situation, it is necessary to carry out previous studies in the areas to be treated. Therefore, it is necessary to have a tool to help us verify the distribution of soils in the city, thus facilitating decision making [4]. Therefore, it was considered necessary to carry out a geotechnical zoning of the city of Valledupar. In 2017, as a grade project, geotechnical characterization of the subsoil was conducted in the northern part of the capital city of Valledupar. Two samples were collected from 30 apiques in the relevant areas, and the project showcased some of its characteristics. With this information, a database for the city of Valledupar was created, because historically there have been no soil zoning studies that allow for an understanding of its status [12]. A geographic information system (GIS) is a system used to describe and categorize the Earth and other geographies in order to display and analyze the information referred to space [3] and through its use an advanced conceptual model was reached that revealed the geotechnical or geological problems of the soil, which can be used to conduct preliminary studies Copyright © 2023 by author(s) and Frontier Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/