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Subsoil geophysical evaluation using GPR and free software/Evaluacion geofisica del subsuelo usando GPR y software libre

In this work, a geophysical characterization of the subsoil of a civil structure corresponding to the basement of a residential complex in Bogota, Colombia was carried out, using the GPR technique. We were chosen to establish the affectation caused by weeping willow (Salix Babylonica) trees planted...

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Published in:Earth sciences research journal 2024-09, Vol.28 (3), p.255
Main Authors: Guerrero, Hernan Dario, Ochoa, Luis Hernan
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description In this work, a geophysical characterization of the subsoil of a civil structure corresponding to the basement of a residential complex in Bogota, Colombia was carried out, using the GPR technique. We were chosen to establish the affectation caused by weeping willow (Salix Babylonica) trees planted near the retaining wall of the structure's foundation and its parking lot platforms. We acquired GPR profiles all throughout the area of the internal part of the basement and the outer retaining wall part. The pieces of equipment used were SIR 4000 and a HS 350 MHz center frequency antenna. The data presented a good and consistent signal. High resolution subsoil images of up to 3m in depth of the area below the parking lots were generated through the analysis of information derived from the processing and interpretation of the data. All of these were compared with information from geotechnical and topographic studies of the area. The results obtained show that the trees' roots are causing scour due to a drying effect of the subsoil, which caused damage to the slab in the parking lot and on the retaining wall. Keywords: weeping willow trees; reflection; georadar; GPR; electromagnetic methods; scour; drying effect; subsoil disturbance. En este trabajo, se realizo la evaluacion geofisica del subsuelo de una estructura civil correspondiente al sotano de un conjunto residencial en Bogota, Colombia, utilizando la tecnica de GPR. Se selecciono el area para establecer el impacto causado por arboles de sauce lloron (Salix babylonica) plantados cerca del muro de contencion de la cimentacion de la estructura y de las plataformas del parqueadero. Se adquirieron perfiles de GPR en toda el area de la parte interna del sotano y en la parte externa del muro de contencion. El equipo utilizado fue el SIR 4000 con una antena de frecuencia central de 350 MHz. Los datos presentaron una senal buena y consistente. A traves del analisis de la informacion derivada del procesamiento e interpretacion de los datos, se generaron imagenes de alta resolucion del subsuelo, alcanzando profundidades de hasta 3 m en el area debajo de los parqueaderos. Toda esta informacion se comparo con estudios geotecnicos y topograficos de la zona. Los resultados obtenidos muestran que las raices de los arboles estan causando socavacion debido a un efecto de desecacion del subsuelo, lo cual ha generado danos en la losa del parqueadero y en el muro de contencion. Palabras clave: GPR; georradar; metodos electrom
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We were chosen to establish the affectation caused by weeping willow (Salix Babylonica) trees planted near the retaining wall of the structure's foundation and its parking lot platforms. We acquired GPR profiles all throughout the area of the internal part of the basement and the outer retaining wall part. The pieces of equipment used were SIR 4000 and a HS 350 MHz center frequency antenna. The data presented a good and consistent signal. High resolution subsoil images of up to 3m in depth of the area below the parking lots were generated through the analysis of information derived from the processing and interpretation of the data. All of these were compared with information from geotechnical and topographic studies of the area. The results obtained show that the trees' roots are causing scour due to a drying effect of the subsoil, which caused damage to the slab in the parking lot and on the retaining wall. Keywords: weeping willow trees; reflection; georadar; GPR; electromagnetic methods; scour; drying effect; subsoil disturbance. En este trabajo, se realizo la evaluacion geofisica del subsuelo de una estructura civil correspondiente al sotano de un conjunto residencial en Bogota, Colombia, utilizando la tecnica de GPR. Se selecciono el area para establecer el impacto causado por arboles de sauce lloron (Salix babylonica) plantados cerca del muro de contencion de la cimentacion de la estructura y de las plataformas del parqueadero. Se adquirieron perfiles de GPR en toda el area de la parte interna del sotano y en la parte externa del muro de contencion. El equipo utilizado fue el SIR 4000 con una antena de frecuencia central de 350 MHz. Los datos presentaron una senal buena y consistente. A traves del analisis de la informacion derivada del procesamiento e interpretacion de los datos, se generaron imagenes de alta resolucion del subsuelo, alcanzando profundidades de hasta 3 m en el area debajo de los parqueaderos. Toda esta informacion se comparo con estudios geotecnicos y topograficos de la zona. Los resultados obtenidos muestran que las raices de los arboles estan causando socavacion debido a un efecto de desecacion del subsuelo, lo cual ha generado danos en la losa del parqueadero y en el muro de contencion. 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Keywords: weeping willow trees; reflection; georadar; GPR; electromagnetic methods; scour; drying effect; subsoil disturbance. En este trabajo, se realizo la evaluacion geofisica del subsuelo de una estructura civil correspondiente al sotano de un conjunto residencial en Bogota, Colombia, utilizando la tecnica de GPR. Se selecciono el area para establecer el impacto causado por arboles de sauce lloron (Salix babylonica) plantados cerca del muro de contencion de la cimentacion de la estructura y de las plataformas del parqueadero. Se adquirieron perfiles de GPR en toda el area de la parte interna del sotano y en la parte externa del muro de contencion. El equipo utilizado fue el SIR 4000 con una antena de frecuencia central de 350 MHz. Los datos presentaron una senal buena y consistente. A traves del analisis de la informacion derivada del procesamiento e interpretacion de los datos, se generaron imagenes de alta resolucion del subsuelo, alcanzando profundidades de hasta 3 m en el area debajo de los parqueaderos. Toda esta informacion se comparo con estudios geotecnicos y topograficos de la zona. Los resultados obtenidos muestran que las raices de los arboles estan causando socavacion debido a un efecto de desecacion del subsuelo, lo cual ha generado danos en la losa del parqueadero y en el muro de contencion. 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We were chosen to establish the affectation caused by weeping willow (Salix Babylonica) trees planted near the retaining wall of the structure's foundation and its parking lot platforms. We acquired GPR profiles all throughout the area of the internal part of the basement and the outer retaining wall part. The pieces of equipment used were SIR 4000 and a HS 350 MHz center frequency antenna. The data presented a good and consistent signal. High resolution subsoil images of up to 3m in depth of the area below the parking lots were generated through the analysis of information derived from the processing and interpretation of the data. All of these were compared with information from geotechnical and topographic studies of the area. The results obtained show that the trees' roots are causing scour due to a drying effect of the subsoil, which caused damage to the slab in the parking lot and on the retaining wall. Keywords: weeping willow trees; reflection; georadar; GPR; electromagnetic methods; scour; drying effect; subsoil disturbance. En este trabajo, se realizo la evaluacion geofisica del subsuelo de una estructura civil correspondiente al sotano de un conjunto residencial en Bogota, Colombia, utilizando la tecnica de GPR. Se selecciono el area para establecer el impacto causado por arboles de sauce lloron (Salix babylonica) plantados cerca del muro de contencion de la cimentacion de la estructura y de las plataformas del parqueadero. Se adquirieron perfiles de GPR en toda el area de la parte interna del sotano y en la parte externa del muro de contencion. El equipo utilizado fue el SIR 4000 con una antena de frecuencia central de 350 MHz. Los datos presentaron una senal buena y consistente. A traves del analisis de la informacion derivada del procesamiento e interpretacion de los datos, se generaron imagenes de alta resolucion del subsuelo, alcanzando profundidades de hasta 3 m en el area debajo de los parqueaderos. Toda esta informacion se comparo con estudios geotecnicos y topograficos de la zona. Los resultados obtenidos muestran que las raices de los arboles estan causando socavacion debido a un efecto de desecacion del subsuelo, lo cual ha generado danos en la losa del parqueadero y en el muro de contencion. Palabras clave: GPR; georradar; metodos electromagneticos; reflexion; socavacion; efecto de desecacion en estructuras; alteracion del subsuelo; sauce lloron;</abstract><pub>Universidad Nacional de Colombia, Departamento de Geociencias</pub><doi>10.15446/esrj.v28n3.97305</doi></addata></record>
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subjects Antennas (Electronics)
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Evaluation
title Subsoil geophysical evaluation using GPR and free software/Evaluacion geofisica del subsuelo usando GPR y software libre
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