Estudio geotécnico in Gondomar

In the municipality of Gondomar, soils formed by sandstones, conglomerates and flysch predominate, followed in frequency by slates and schists. These lithologies confer on the ground a high strength and a favourable bearing capacity for most types of shallow foundation, since competent strata are usually found at shallow depth. The localised areas with fine sands and silts are marginal and, due to their limited presence, are considered only in specific studies, although it is recommended to avoid direct foundations on these less competent materials.

Seismic activity in Gondomar is very low, with only 2 events in 30 years and a maximum recorded magnitude of 2.7, which implies a low seismic constraint for structural design. Given the predominance of non-clayey substrate, the existence of problems associated with soil expansiveness is ruled out. In conclusion, the main geotechnical consideration for Gondomar lies in identifying the mixture of materials present and verifying the presence of sufficiently compact strata to ensure foundation stability.