A preliminary approach on subway metro stations and their gravity signature
DOI:
https://doi.org/10.22201/igeof.2954436xe.2026.65.4.1933Palabras clave:
Geofísica urbana, Estación de metro subterránea, Mediciones de gravedad, Cuenca de Atenas, Correcciones de gravedadResumen
Se llevó a cabo un estudio especial de gravedad urbana con el fin de determinar el efecto gravitacional de las estructuras subterráneas artificiales y, más concretamente, de las estaciones de metro, utilizando mediciones de campo. Las infraestructuras subterráneas a gran escala son habituales en las ciudades y perturban el campo gravitatorio. Durante un estudio de gravedad urbana, se deben calcular y aplicar correcciones de datos para este tipo de perturbaciones a fin de garantizar resultados precisos. Esto implica adquirir un conjunto de mediciones de gravedad a intervalos regulares, en la ubicación de una estación de metro, antes y después de su construcción. La variación de la gravedad se debe a la remoción del material geológico subterráneo y su sustitución parcial por materiales estructurales, así como al vacío restante y la cubierta de la estación con materiales ligeros. Además de verificar la anomalía gravitacional causada por la estación de metro, también se ha verificado, como era de esperar, la importancia de la distancia desde la estación gravitatoria, basándose en las mediciones de campo. A partir de la correlación entre las variaciones gravitatorias y la distancia desde la estación de metro, el efecto de la gravedad se desvanece a distancias de entre 95 y 100 metros aproximadamente, pero es necesario validarlo con un conjunto de datos más amplio.
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