Análisis geoestadístico para la obtención de un modelo geológico-geotécnico, caso de estudio metro de Bogotá-Colombia

Abstract

There are computational tools that serve as powerful mechanisms to link areas of knowledge such as Geology with Civil Engineering, this is the case of the connection that must exist when analysing information and specialized tests to characterize a terrain, depending on the scale and the complexity of it. Geological-geotechnical models provide to the engineer a tool for a better understanding of the prevailing conditions in a specific place, these can vary widely and include written descriptions, two-dimensional sections, block diagrams or lean towards some particular aspect, such as groundwater , geomorphological processes, rocky structure, etc. (The Geological Society, 1997); allowing to identify the most relevant existing geotechnical problems and make the estimation of soil properties closer to reality. This work shows the process to obtain for the design of a geological-geotechnical model for a part of section IV of the underground line of the Bogotá metro, thanks to this it is possible to optimize study time in the analysis and results of the properties of the subsoil of this project. Finally, it was found that from the application of the Kriging method, in the ArcGIS geographic information software, and geo-statistical analysis, a continuous prediction profile can be obtained along the road corridor, differentiating it positively with the methods conventionally used.