STRESS-STRAIN STATE OF METRO TUNNEL CONSTRUCTION UNDER SEISMIC IMPACTS
DOI:
https://doi.org/10.17605/OSF.IO/FRG3AKeywords:
tunnel, structure, typical circular lining, tubing, soil, seismic.Abstract
The article presents a study of the stress–strain state of the construction of a deep-laid subway distillation tunnel. The results of calculations of the tunnel lining taking into account the seismic impact of the soil are presented. Based on the above calculation results, the determination of 5 frequencies and forms of natural oscillations of the tunnel lining system with soil. The results of calculations showed that the first frequencies are low. They are taken into account when determining internal efforts and movements. It can be seen that with increasing depth of laying, horizontal and vertical movements over the tunnel decrease.
