3D modeling, surveys and reconstruction of the Varenne forges

This article presents a numerical modeling study carried out on the Forges de Varenne, a former industrial establishment located in Champsecret, in the Orne department of France. These forges were active from the late 16th century until 1866 and represent one of the best preserved sites in Europe, having been classified as a historic monument since 1987. The main aim of this research was to preserve this exceptional industrial heritage by carrying out a detailed photogrammetric survey of the elevated structures and reconstructing the buildings in their original state of operation. We were able to simulate the industrial processes and mechanisms at work in the forges. This has enabled us to gain a better understanding of how the site operates, and to assess the impact of different variables on production. This work has contributed to a better understanding of the region's industrial history and provided a solid basis for the conservation and enhancement of this historic site, unique in Europe.