Scour at Layered River Bed: Reason of the Structures Failure
Environmental Engineering: 9th International Conference: Selected Papers / ed. by D.Cygas, T.Tollazzi
2014
Boriss Gjunsburgs,
Jeļena Govša,
Oskars Lauva
the main tasks for engineers. In spite of the problem importance – the scour development in time at stratified bed conditions is not studied
well. The aim of the study is to propose new method and to estimate the influence of the river bed stratification on depth of scour near
bridge structures in flow. The differential equation of equilibrium for bed sediment movement in clear water was used and a new
calculation method for the scour development in time at vertical wall abutments in plain rivers at clear water and at stratified bed
conditions with uniform grain-size sands layers was elaborated and confirmed by test results. This method allows one to calculate the
scour depth in layers with different mean grain size, thickness and sequence combination
Keywords
scour depth; river bed; layering; grain size
DOI
10.3846/enviro.2014.076
Hyperlink
http://leidykla.vgtu.lt/conferences/ENVIRO_2014/Abstracts/2/076.html
Gjunsburgs, B., Govša, J., Lauva, O. Scour at Layered River Bed: Reason of the Structures Failure. In: Environmental Engineering: 9th International Conference: Selected Papers / ed. by D.Cygas, T.Tollazzi, Lithuania, Vilnius, 22-23 May, 2014. Vilnius: Technika, 2014, pp.1-6. e-ISBN 978-609-457-640-9. e-ISSN 2029-7092. Available from: doi:10.3846/enviro.2014.076
Publication language
English (en)