ScienceDaily reports that researchers from the Applied Geotechnology Group at the University of Vigo have used LiDAR and ground penetrating radar (GPR) to study approximately85 ancient bridges in north-west Spain.The latest bridge to be studied: Monforte de Lemos, in Lugo, according to the Journal of Bridge Engineering.
“As well as obtaining information like the thickness of the stones inside, the GPR has reported the existence of two hollow arches in this medieval bridge, hidden underground at one of the edges,” Dr. Mercedes Solla, one of the authors and current professor at the Defence Academy (Marín, Pontevedra), explains.
The researchers are currently working with a mobile bridge survey vehicle that comprises a mobile 3D laser scanner, a GPR, thermographic cameras and a surface ‘profilometer’. The initiative is part of a European project for the application of technologies for infrastructure management and inspection (known in Spanish as SITEGI).
Thanks to Michael Raphael at Direct Dimensions for the tip.