Geotechnical study in Mansilla de las Mulas

In Mansilla de las Mulas, the dominant substrate is formed mainly by compact gravels and sands, followed by fine sands, silts, and the notable presence of sandstones and conglomerates. These materials, characterised for the most part by their high permeability and good drainage conditions, provide a high bearing capacity, which makes it possible to adopt direct-type shallow foundation solutions in most cases. However, the occasional presence of silts may require specific verification of strength and settlements, particularly in areas close to masses of water.

Local seismicity is significant, with more than 150 events recorded over 30 years and a maximum magnitude of 4.7, so it is essential to incorporate seismic design calculation criteria in the structural design of the foundations. Although the presence of expansive clays is subordinate and is found in climatic areas without a notable water deficit, this factor only becomes important in very specific locations. The most significant conditioning factor for the geotechnical study in the municipality is the seismic action, especially in new-build construction.