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Geophysical surveys integrated with rainfall data analysis for the study of soil piping phenomena occurred in a densely urbanized area in eastern Sicily

Author

Listed:
  • Graziano Patti

    (University of Catania)

  • Sabrina Grassi

    (University of Catania)

  • Gabriele Morreale

    (Aci Sant Antonio)

  • Mauro Corrao

    (Aci Sant Antonio)

  • Sebastiano Imposa

    (University of Catania)

Abstract

The occurrence of strong and abrupt rainfall, together with a wrong land use planning and an uncontrolled urban development, can constitute a risk for infrastructure and population. The water flow in the subsoil, under certain conditions, may cause underground cavities formation. This phenomena known as soil piping can evolve and generate the surface collapse. It is clear that such phenomena in densely urbanized areas represent an unpredictable and consistent risk factor, which can interfere with social activities. In this study a multidisciplinary approach aimed to obtain useful information for the mitigation of the risks associated with the occurrence of soil piping phenomena in urban areas has been developed. This approach is aimed at defining the causes of sudden soil subsidence events, as well as the definition of the extension and possible evolution of these instability areas. The information obtained from rainfall data analysis, together with a study of the morphological, geological and hydrogeological characteristics, have allowed us to evaluate the causes that have led to the formation of soil pipes. Furthermore, performance of 3D electrical resistivity surveys in the area affected by the instability have allowed us to estimate their extension in the subsoil and identifying the presence of further areas susceptible to instability.

Suggested Citation

  • Graziano Patti & Sabrina Grassi & Gabriele Morreale & Mauro Corrao & Sebastiano Imposa, 2021. "Geophysical surveys integrated with rainfall data analysis for the study of soil piping phenomena occurred in a densely urbanized area in eastern Sicily," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 108(3), pages 2467-2492, September.
    • Handle: RePEc:spr:nathaz:v:108:y:2021:i:3:d:10.1007_s11069-021-04784-9
    DOI: 10.1007/s11069-021-04784-9
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    References listed on IDEAS

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    1. A. Viero & A. Galgaro & G. Morelli & A. Breda & R. Francese, 2015. "Investigations on the structural setting of a landslide-prone slope by means of three-dimensional electrical resistivity tomography," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 78(2), pages 1369-1385, September.
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    Cited by:

    1. Hyun Chul Yoon & Jihoon Kim & Evan Schankee Um & Joo Yong Lee, 2022. "Integration of Electromagnetic Geophysics Forward Simulation in Coupled Flow and Geomechanics for Monitoring a Gas Hydrate Deposit Located in the Ulleung Basin, East Sea, Korea," Energies, MDPI, vol. 15(10), pages 1-22, May.

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