12 th International Conference on Structural Analysis of Historical Constructions SAHC 2020 P. Roca, L. Pelà and C. Molins (Eds.) EFFECT OF SLOW-MOVING LANDSLIDES ON CHURCHES IN THE LIGURIA REGION: A GEOTECHNICAL APPROACH LUDOVICA CAMBIAGGI 1 *, CHIARA FERRERO 1 , RICCARDO BERARDI 1 , CHIARA CALDERINI 1 AND RITA VECCHIATTINI 2 1 Department of Civil, Chemical and Environmental Engineering University of Genoa Via Montallegro 1, 16154 Genoa, Italy email: ludovica.cambiaggi@edu.unige.it, chiara.ferrero@edu.unige.it, riccardo.berardi@unige.it, chiara.calderini@unige.it (* corresponding author) 2 Department of Architecture and Design University of Genoa Stradone S. Agostino 37, 16123 Genoa, Italy email: rvecchiattini@unige.it Keywords: Slow-moving landslide, Historic masonry churches, Damage assessment. Abstract. Protecting cultural heritage from water-soil interaction related threats is a current issue and the prediction of the effects induced on buildings by landslides is very challenging. The main difficulties lie in the lack of detailed information about landside movements as well as in the modeling of soil-structure interaction. This paper study the effects of a particular category of slow-moving landslides, namely active rotational and translational slides with movement rates of the order of some mm/year, on buildings of historical and cultural interest such as churches. Three case studies located in the Liguria region (Italy) were analyzed by performing FEM and LEM numerical analyses on sections representative of the slope. 1 INTRODUCTION Slow-moving landslides may cause different damage to facilities such as break of underground utilities (e.g. water and gas distribution pipelines), interruption of transport infrastructures (e.g. roads and railways) with consequent high cost of maintenances, but also cracking and tilting of buildings. Generally, their occurrence does not cause injuries or fatalities; however, relevant economic losses and damage to both cultural heritage and environmental assets can be recorded. With respect to cultural heritage, a significant number of sites and remains are not in equilibrium with the environment. Among natural phenomena, earthquakes, flooding and landslides are the main causes of disruption of cultural heritage sites. Although it is difficult to evaluate the percentage of losses caused by each single phenomenon, it can be easily observed that earthquakes and flooding affect a very large area and a significant number of monuments