Estudio geotécnico in Casatejada

In Casatejada, the dominant geological substrate is mainly composed of sandstones, conglomerates and flysch—materials that are characterised by having good bearing capacity, making them ideal for building and civil engineering projects. The occasional presence of granite, gneiss and other igneous rocks increases the stability of the foundations and minimises the risk of deformation. Compact gravels and sands, although less frequent, provide favourable conditions for shallow foundations, provided that their relative density is sufficient. Limestones, dolomites and marbles complete the lithological picture, being important in areas where deep foundations are proposed. In general, these materials allow a positive assessment for support safety, but particular attention must be paid to the presence of water bodies that may condition local drainage and affect the durability of the foundations.

The Casatejada area shows very low seismicity, with only one recorded event every 30 years and a maximum magnitude of 1.5, so this factor does not represent a significant constraint for structural design. No karst phenomena or formations of expansive clays are observed, since the non-clayey substrate rules out risks associated with volumetric expansiveness. Groundwater conditions are influenced by the low permeability of the prevailing materials, although shallow aquifers may be found in certain areas. In conclusion, the main geotechnical constraint for the municipality lies in lithological heterogeneity and the need to assess locally the bearing capacity and any possible interference with water masses.