Russian Federation
Russian Federation
Objective: to evaluate changes in the stress-strain state of the chamber tunnel lining located under the ventilation shaft and experiencing the pressure of foam–reinforced concrete, a layer of structural reinforcement and insulation of the shaft. Methods: the study was performed in two- and threedimensional formulations using different methods – the Hyperstatic Reaction Method (HRM) and the finite element method. The calculation results were compared with each other through the corresponding coefficients of the bearing capacity of the tunnel chamber lining. As a result of the study, satisfactory convergence of calculation methods with each other was found. Practical significance: the results of the study can be used to calculate complex spatial structures, the work of which can be reduced to arches.
tunnel, lining, mathematical modeling, finite element method, hyperstatic reaction method
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