Received 11.07.2025
Revised 25.10.2025
Accepted 15.12.2025
Retrieved from Iss. 118, P. 2, 2025
Pages 166 -174
Abstract
The article presents the results of experimental studies regarding hydraulic processes in culverts under conditions of varying stress-strain states. The main flow regimes—free-flow, semi-pressure, and full-pressure—are examined, and the conditions for their occurrence are defined. Particular attention is devoted to the physical modeling of the interaction within the "embankment – pipe – foundation" system at the National Transport University (NTU) hydraulics laboratory, utilizing Newton and Froude similarity criteria. The dependence of the water head ($H$) on pipe deformations (deflections) has been experimentally established. It was revealed that upward pipe deflection leads to a significant increase in the water head (up to 67%), whereas downward deflection initially promotes an increase in discharge capacity. The obtained data allow for the consideration of dynamic changes in structure geometry when evaluating its hydraulic efficiency.
Keywords:
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