Shashenko, OleksandrShapoval, VolodymyrKhalymendyk, OleksiiAndrieiev, Volodymyr S.Arbuzov, MaximHubar, Oleksіy V.Markul, Ruslan V.2020-01-202020-01-202019Features of the Nonlinear Calculation of the Stress-Strain State of the "Rock Massif–Excavation Support" System Taking into Account Destruction / Shashenko О. at al. Transport Means 2019 : Proc. of the 23rd Intern. Sci. Conf. (Oct. 02–04, 2019). Palanga, Lithuania. 2019. Pt. III. P. 1356–1363.http://eadnurt.diit.edu.ua/jspui/handle/123456789/11762https://transportmeans.ktu.edu/proceedings-transport-means-2019-2/https://transportmeans.ktu.edu/wp-content/uploads/sites/307/2018/02/Transport-means-2019-Part-3.pdfV. Andrieiev: ORCID 0000-0002-0862-2790; О. Hubar: ORCID 0000-0001-8683-5372; R. Markul: ORCID 0000-0002-7630-8963ENG: The algorithm for estimating the reliability of the results of the calculation of the stress-strain state of the “rock massif-excavation support” system, taking into account the non-linear relationship between stresses and strains, as well as the destruction of the rock, is presented. In the course of a numerical experiment, it was shown that to determine the reliability of the calculation results, it is enough to find the relative error between the maximum efforts in the lining and then the extremum (more precisely, the maximum) of the “relative error – depth of the excavation center”.enextended developmentgeomechanical modelplane stress stateplane strain statedisplacementsstressesfinite element methodphysical nonlinearitysuccessive loading methodrock destructionКККГArticle