Tubing facings are the cast-iron or reinforced concrete structures for fastening tunnels, characterized by low material consumption with optimal stiffness properties. When modeling these facings by the finite element method with modern computational systems, the creation of models of tubing elements - longitudinal and transverse sides, back and stiffeners - leads to an increase in the number of model elements, which ultimately increases the time for creating a model and solving the problem. Therefore, for modeling tubing facing, the same principle as for modeling block facing is often applied - replacing the real section of the structure with a solid section with equivalent stiffness. In this case, it is very important to establish to what extent the calculations of the reduced section’s facing allow obtaining correct results for checking the strength of the sections and assessing the magnitude of the structure’s deformations. The authors analyzed this modeling approach using the example of two types of subway station facings made of cast-iron and reinforced concrete tubing and the corresponding facings of a reduced rectangular cross-section.
The Results Analysis of the Tubing Tunnel Facing Mathematical Modeling Using the Reduced Sections
Lect. Notes in Networks, Syst.
International Scientific Siberian Transport Forum ; 2021 May 11, 2021 - May 14, 2021
International Scientific Siberian Transport Forum TransSiberia - 2021 ; Kapitel : 62 ; 568-576
2022-03-19
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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