Integración de métodos geofísicos y geotécnicos para la caracterización del subsuelo en una ladera aledaña al relleno sanitario “La Cortada”, municipio de Pamplona, departamento de Norte de Santander (Colombia).

Abstract

The present article exposes an application of geophysical and geotechnical methods on a hillside adjacent to the sanitary landfill "La Cortada" in the municipality of Pamplona (Norte de Santander, Colombia). The methods used were Multichannel Surface Wave Analysis (MASW), Seismic Refraction Tomography (SRT), Vertical Electric Sounding (VES) and the Standard Penetration Test (SPT) for the geotechnical case. The objective of this investigation was to perform a geophysical and geotechnical characterization based on an integration of the physical properties obtained with each of the tests. This was carried out through three phases, a first phase of data acquisition, where a total of four (4) seismic lines (SRT and MASW), seven (7) VES and two (2) SPT, a second phase of information processing, which was mainly analyzed in specialized software and a third analysis of results in which P wave velocity ranges were obtained between 220 to 1175 m / s, S wave velocity between 175 to 675 m / s and resistivities between 25 and 600 Ω-m. Finally, type D soil was identified, corresponding to rigid materials and soil type C corresponding to sands with the presence of clay and saturated silty clay.