International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Volume XLIV-M-1-2020
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIV-M-1-2020, 707–712, 2020
https://doi.org/10.5194/isprs-archives-XLIV-M-1-2020-707-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIV-M-1-2020, 707–712, 2020
https://doi.org/10.5194/isprs-archives-XLIV-M-1-2020-707-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  24 Jul 2020

24 Jul 2020

IDENTIFICATION AND MITIGATION OF SINKHOLE HAZARDS IN AN EVAPORITE KARST AREA (PERDIGUERA, SPAIN)

F. J. Torrijo1,3, R. Fuentes1, A. Boix2, and P. Bracchi2 F. J. Torrijo et al.
  • 1Departamento de Ingeniería del Terreno, Universitat Politècnica de València, Valencia, Spain
  • 2Facultad de Arquitectura y Urbanismo, Universidad UTE de Quito, Ecuador
  • 3Research Centre PEGASO, Universitat Politècnica de València, Valencia, Spain

Keywords: Karst, Sinkhole, Gypsum, Risk, Subsidence, Ebro Basin

Abstract. Sinkhole risks are becoming particularly severe in urban areas that lack careful planning and where karst depressions are frequently filled and developed. Sinkholes frequently have a higher probability of occurrence and a bigger genetic diversity in evaporite rocks than in carbonate rocks. This is because evaporites rocks (halite, gypsum, etc) have a higher solubility. Subsidence damage resulting from this dissolution generates considerable losses at the world. To contract with these risks, is needed the identification, investigation, prediction, and mitigation of sinkholes. Corrective measures might be applied to reduce the subsidence processes. A more practical solution for safe development is to reduce the vulnerability of the structures by using subsidence-proof designs. Therefore, this case study is located in the town of Perdiguera (Zaragoza, Spain), within the Ebro Basin. This town is affected by subsidence problems, which are associated with the dissolution of gypsiferous silts that generate sinking. These sinkholes are affecting the buildings threatening its structural integrity.