The aim of this thesis is to perform, with the help of new informatics tools, an original study method of funerary space and offers a three-dimensional modelling of burial from architecture to individuals. This work was initiated by the discovery in 2003 of Saint Peter and Marcellinus catacombs parts, unexplored and original in its organisation. Several tombs, dated of 1st-3rd s A.D, received many buried. The complexity of tombs of central sector catacombs needs a new type of representation for analysis. The thesis goal is to establish a modelling process for several burials, adapt with deposit complex stratification. At first, our study was about the conception and the test of a modelling protocol adapted to the two study tombs, and after, to analyze chronological times and deposit management. Our research has result to acquisition and restitution process development of all human remains, funerary device and funerary space. The 3D modelling permits by the 3D visualisation, an advanced study, analyses of relations between different individuals and taphonomic evolution of deposit which confirmed the simultaneous deposit into levels and between levels linked to death's crisis.The application of a record protocol then restitution on these catacombs must contribute to a conception method for the approach of plural burials.
