Estudio geotécnico in The Casar

In the municipality of El Casar, the geotechnical substrate is dominated by fine sands and silts, which occur with high frequency throughout the area. These materials generally provide an acceptable but moderate bearing capacity, which means that foundation solutions must be selected carefully, mainly strip footings or even deep foundations when the shallowest layers show low strength or high variability. The low permeability typical of these formations may lead to the formation of small near-surface aquifers; therefore, a precise hydrogeological assessment will be necessary on each plot before designing the foundations.

Seismicity in El Casar is classified as high, with more than 150 registered events and a maximum magnitude (Mmax) of 4.6 over the last 30 years, so it must be given particularly careful consideration during the structural design of buildings. With regard to expansiveness, although there are expansive clays of a subordinate and localised nature, mainly under specific climatic conditions, the risk from swelling is not predominant across most of the ground; however, it is always advisable to verify locally the nature of the soil before executing the foundations. The main geotechnical constraint in El Casar is therefore seismicity, followed by the correct characterisation of the silty and sandy soils in order to avoid settlement problems.