Non-destructive control data analysis of railroad foundation constructions Alexander Trofimov, Albina Kuzmenko, Halyna Nesterenko, Svitlana Avramenko, Mykhailo Muzykin, Nikolaj Mormul and Anatoliy Sokhatsky MATEC Web Conf., 294 (2019) 03012 Published online: 16 October 2019 DOI: 10.1051/matecconf/201929403012