Geotechnical study in Olivares

In Olivares, the dominant subsoil is composed of limestones, dolomites and marbles, which provides high bearing-capacity soils generally favourable for shallow foundations. Deposits of compact gravel and sand are less common, although they contribute good stability where they occur, while fine sands and silts, present to a lesser extent, may require special attention to avoid differential settlement. Permeability is generally low, although shallow aquifers associated with discontinuities may appear, an aspect that is relevant for controlling possible upward movement of water beneath foundations.

The region shows very low seismicity, with just 2 events in the last 30 years and a maximum magnitude of 2.3, which minimises the need for seismic measures in structural design. As no karstic risk is detected and the substrate is predominantly non-clayey, expansivity risk can be ruled out. Therefore, the most relevant factor for geotechnical studies in Olivares is the characterisation of the mechanical properties of the rock mass, particularly in areas where finer or fractured materials may crop out.