Stress-Strain State of a Metro Vestibule Under Impact Loading, Considering the Depth of the Structural Arrangement

Oleksii Tiutkin; Olha Dubinchyk; Sofiia Bielikova

doi:10.14513/actatechjaur.00849

Authors

Oleksii Tiutkin Department Transport Infrastructure, Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, Ukraine
Olha Dubinchyk Department Transport Infrastructure, Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, Ukraine
Sofiia Bielikova Department Transport Infrastructure, Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, Ukraine

DOI:

https://doi.org/10.14513/actatechjaur.00849

Keywords:

metro vestibule, numerical analysis, stress-strain state, impact loading, reinforcement structure

Abstract

The paper analyses the structure of a metro vestibule and considers the possibility of impact loading affecting it. Three-dimensional finite element models were developed to research changes in the stress-strain state of the metro vestibule. The models reflect the complex structure of the vestibule, including the excavation support as a “slurry wall” and the depth of the structural arrangement. The developed models simulate three depths of the structural arrangement (1.8 m; 3.6 m; 7.2 m). A numerical analysis of the models was performed to estimate the impact loading applied as a quasi-static effect. The patterns of changes in the stress-strain state of the metro vestibule, considering the depth of the structural arrangement, were obtained. A reinforced-concrete slab is proposed as the reinforcement structure for the vestibule. A numerical analysis of the reinforcement structure for impact loading was performed.

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