Studies and research on the phenomenon of hydrodynamic erosion in river beds

Autor: Paul-Vivian SION, Mihaela AVRAM, Mihail LUCA
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Present Environment and Sustainable Development, Vol 15, Iss 2, Pp 273-280 (2021)
Druh dokumentu: article
ISSN: 2284-7820
DOI: 10.15551/pesd2021152022
Popis: The phenomenon of hydrodynamic erosion affects the riverbeds in which sub-crossings of pipes or bridges are located. The depth of erosion is determined at a point in the riverbed by the use of specialized computational relationships. For some works located in the riverbed it is necessary to know the erosion depths on the perimeter of the flow section. The analysis models used to investigate the phenomenon of hydrodynamic erosion were: a - topographic model; b - calculation relations from the technical regulations; c - erosion simulation model on a river section. The obtained results were materialized by the evolution of the erosion depths on the considered river sector over an interval of about 5-15 years. The depth of erosion on the lower course of the Moldova River showed values from 0.75 m to 1.65 m on a research sector. The research results were capitalized on the design of the rehabilitation works of the constructions present in the riverbed.
Databáze: Directory of Open Access Journals