Estudio geotécnico in Riba-roja d'Ebre

In Riba-roja d'Ebre, the subsoil is characterised by a marked predominance of water masses and deltaic deposits of muds and peats, which implies a high presence of organic soils with low strength and high compressibility. These features significantly condition the ground bearing capacity, making it unfeasible to consider shallow foundations directly on these soft strata. Therefore, building projects require a specialised geotechnical study that identifies and avoids the use of muds and peats as a founding level, developing deep foundation solutions tailored to the local deltaic conditions.

The seismicity in the area can be considered moderate, having recorded 14 events over the last 30 years, although with a maximum magnitude (Mmax) of 2.6, which places the risk within low parameters and enables structural design to be carried out without extraordinary requirements for this reason. The absence of risks associated with karst or expansive clayey soils, confirmed by the non-clayey nature of the substrate, helps to focus the main concern on the presence of compressible organic soils. Thus, the suitability of founding levels and the careful design of the foundations are the key aspects to assess in the municipality’s geotechnical study.