Estudio geotécnico in Petrer

In the municipality of Petrer, soils of sandstones, conglomerates and flysch predominate; these materials usually show adequate bearing capacity for conventional foundations, although less competent levels may be interbedded. Calic limestones and dolomites are also found in smaller proportions, as well as small areas of gypsum, anhydrite and salts; their localised presence requires assessing the risk of dissolution in those sectors. Areas with gravel and compact sands provide good conditions for supporting structures, whereas the layers of fine sands and silts must be analysed for their potential compressibility or low strength. In general, the low permeability of the materials limits the risk of phenomena associated with high seepage, although there may be localised near-surface aquifers.

Seismic activity in Petrer is moderate, with 13 recorded events in the last 30 years and a maximum magnitude of less than 3, which does not represent a significant constraint for structural design. However, given the presence of calcareous and dolomitic formations, the development of karst becomes a key factor to investigate before carrying out foundation work, since cavities or dissolutions may exist that could affect ground stability. The absence of clayey substrata eliminates the risk of problems due to expansivity. Therefore, the main geotechnical aspect to consider is verifying the karst and the possible impact of gypsum dissolution at localised points.