These SESIONES SEMSIG-AETESS are on of the most important events held every year in Spain about geotechnical engineering sector. This event is the industry’s opportunity to share the knowledge, projects and application experiences. Provide the opportunity to know cases which show real-world applications and the implementation of new technologies. This 16th Session is about the geotechnical challenges which the spanish geotechnical sector, private and public, which faces abroad.