A numerical analysis of some structural and geotechnical problems observed at Vat Phu monument site

The relevant geotechnical and structural problems characterizing Vat Phu monument site (Lao People’s Democratic Republic) are briefly outlined, on the basis of a preliminary site visit and of the performed in situ investigation. After recalling the historical background of the site, the main engineering aspects to be considered in the possible restoration of its monuments are outlined. Then, the results of some numerical analyses are presented, which aim at obtaining an insight into the causes that induced the observed severe damages of the ancient structures. The numerical results lead to some conclusions on the possible provisions which can be adopted for the stabilization and restoration of the site.