Estudio geotécnico in Carranque

In Carranque, the ground conditions are characterised mainly by the presence of sandstones, conglomerates and flysch, which constitute the bulk of the substrate. These formations generally offer good bearing-capacity conditions, although it is essential to identify the heterogeneity associated with the conglomerates and flysch in order to define the safest foundation. There is also a significant proportion of water masses, which necessarily implies assessing groundwater levels and their possible impact on the effective bearing capacity, as well as when designing drainage solutions. Limestone and dolomites, although less common, may show variability in strength and require specific attention when they are located within the project site.

From the seismic point of view, Carranque is located in an area with high activity, recording close to 200 events over 30 years and a maximum magnitude of 5.1. This context makes it necessary to incorporate earthquake-resistant considerations into the structural design from the initial phase of the geotechnical study. The risk of expansivity is present in a subordinate way, so it is recommended to analyse whether expansive clays could affect the specific area of the site. The main constraint for construction in this municipality is, without doubt, the high seismicity level, which determines the foundation approaches and must be addressed with specific tests and the current regulations.