Aplicación de los métodos de prospección geofísica para la caracterización geotécnica del subsuelo en el barrio El Orfanato, municipio de Pamplona, Norte de Santander. Colombia.

Abstract

In this research, geotechnical and geophysical methods were applied, which were used for the characterization of the subsoil in the neighborhood of El Orfanato, in the municipality of Pamplona, Norte de Santander (Colombia). The geotechnical technique that was applied for this study was the Standard Penetration Test (SPT), and for the geophysical area the Vertical Electric Probing (SEV), the Seismic Refraction Tomography (TRS) and the Multichannel Analysis of Surface Waves were used. (MASW 1D and 2D), these techniques allow to know the dynamic parameters of the soil, the electrical resistivity and the velocities of P and S waves of the different materials found in the study area; It was developed in three (3) phases: the field phase that consisted of the survey of 3 seismic lines, where a topographic survey was carried out, five (5) standard penetration tests (SPT) at a maximum depth of 4.57 meters, eighteen (18) vertical electrical soundings (SEV), for the acquisition of data from seismic refraction tomography (TRS) and multichannel analysis of surface waves (MASW 1D and MASW 2D) a laying of three (3) lines of 80.5 meters of length. The data processing phase, which consisted of processing the data acquired in the field, through laboratory tests and specialized software. In the data analysis and interpretation phase, the interpretation and correlation of the data was carried out, giving as results, a type D soil profile according to the Colombian building code (NSR-10), composed of inorganic silt and clay sands, P wave speeds between 260 m / s and 766 m / s, S wave speeds between 170 m / s and 430 m / s.