The earthquake resistance work carried out for the building housing the Victor Fouche former maternity hospital, enabled certain reinforcement techniques to be developed such as “nailing” existing foundations by using micropiles, reinforcing hollow body concrete floors by means of pre-stressing and post-tensioning or the development of reinforced concrete retaining walls at variable thicknesses and dimensions depending on the intensity of the seismic stresses to be borne. Studies were carried out with Professor Victor Davidovici (Dynamique Concept).