Estudio geotécnico in Laza

In Laza, the dominant substrate is made up of slates and schists, which represent approximately 83% of the soils in the municipality. This type of rock formation, together with the occasional presence of sandstones, conglomerates and flysch, creates a geotechnical environment with generally favourable bearing capacity for shallow or semi-deep foundation projects. However, the low permeability of these materials implies a potential accumulation of surface water, which must be analysed in order to avoid problems associated with ground saturation and to adequately justify the foundation solution.

The seismic activity in Laza can be classified as high, given that 185 events have been recorded over 30 years, although the maximum observed magnitude (Mmax 3.7) remains below critical thresholds and does not require specific measures for earthquake-resistant structural design. No karst presence or risks of expansivity are recorded, since the non-clayey substrate rules out the possible occurrence of expansive clays. The main factor conditioning the geotechnical study in Laza will be the accurate characterisation of the strength and hydraulic conditions of the slates and schists, ensuring a foundation adapted to the ground’s low permeability.