Szukana fraza: [Abstract = "The paper presents the application of the finite element method into the modelling of soil arching. The phenomenon plays fundamental role in soil\-shell flexible structures behaviour. To evaluate the influence of arching on a pressure reduction, a plain strain trapdoor under a shallow layer of backfill was simulated. The Coulomb\-Mohr plasticity condition and the nonassociated flow rule were used for the soil model."]