Geotechnical study in Campo Lameiro

In Campo Lameiro, soils formed by slate and schists predominate—rocky materials of low permeability that characterise most of the subsoil in the area. This geological composition provides generally high bearing capacity, facilitating the execution of shallow (direct) foundations on competent ground, provided that the appropriate level free from alteration is reached. However, the occasional presence of shallow aquifers may require special attention in the management of groundwater during the excavation and foundation stages.

Seismicity in Campo Lameiro is moderate, with 47 events recorded over 30 years and a maximum magnitude of 2.9, which implies that seismic risk will not be a primary constraint in structural design. Since the substratum is non-clayey, the risk of expansivity in the ground materials can be ruled out. The main constraint in geotechnical studies in this municipality will be to ensure an adequate characterisation of the degree of alteration of the rock substratum and to plan proper management of any surface or groundwater (phreatic) waters that may be present.