Lanchava, O. and Nozadze, G. 2021. The nature of the piston effect in metro tunnels according to numerical analysis: The work was carried out with the grant funding of Shota Rustaveli National Science Foundation. Grant number: 216968. Georgian Scientists. 3, 1 (Jun. 2021). DOI:https://doi.org/10.52340/gs.02.21.281.