Estudio geotécnico in Speak

In Parla, the subsoil is formed mostly by sandstones, conglomerates and flysch, which provides ground with good bearing-capacity conditions for conventional foundations. This type of soil usually shows moderate permeability and the partial presence of extensive aquifers, with a secondary composition of limestones and dolomites that can, in specific places, modify geotechnical behaviour in particular areas. The predominance of granular and cemented materials generally makes it possible to opt for shallow foundations, except where the local presence of softer materials, such as subordinate clays, requires a detailed assessment.

Seismic activity is very low in the municipality, with only about 5 events over 30 years and a maximum magnitude of 3, which minimises the impact of seismicity on structural design. As regards the risk of expansiveness, expansive clays are present in a subordinate manner and, in addition, located in climatic zones without deficits that would amplify the phenomenon; therefore, the main factor for the geotechnical study in Parla will be the local characterisation of soft layers and the lateral variability of the materials, rather than significant seismic or expansive risks.