Estudio geotécnico in Deltebre

In the municipality of Deltebre, a substrate is predominant, formed mostly of fine sands and silts, with occasional occurrences of muds, peats, and some layers of compact gravels and sands. This type of soil exhibits limited bearing capacity, particularly in the presence of mud and peat layers of deltaic origin, which are not recommended as direct support for foundations due to their low strength and high compressibility. It is essential to identify areas with clean sands or compact gravels in order to place the foundations, as they provide safer and more stable conditions.

Seismicity in Deltebre is moderate, with a record of 10 events over 30 years, although no event of structural significance is recorded (Mmax 2.7). The risk associated with soil expansion can be ruled out, as the substrate is predominantly non-clayey. There is no problem of karstification or dissolution, given the type of material present. The main geotechnical constraint for construction in Deltebre lies in identifying and controlling the soft strata, especially the muds and peats, whose presence requires specific foundation solutions to ensure the stability of the structures.