Infuence of collars on reduction in scour depth at two piers in a tandem confguration

Memar, Sargol; Zounemat-Kermani, Mohammad; Beheshti, Aliasghar; Rahimpour, Majid; De, Cesare Giovanni; Schleiss, Anton J.

doi:10.1007/s11600-019-00393-0

Artykuł - szczegóły

Tytuł artykułu

Infuence of collars on reduction in scour depth at two piers in a tandem confguration

Autorzy

Memar Sargol , Zounemat-Kermani Mohammad , Beheshti Aliasghar , Rahimpour Majid , De Cesare Giovanni , Schleiss Anton J.

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-019-00393-0

Warianty tytułu

Języki publikacji

Abstrakty

Bridge failure, due to local scour at bridge pier foundations, has become a critical issue in river and bridge engineering, which might lead to transportation disruption, loss of lives and economic problems. A practical solution to prevent bridge collapses is the implementation of scour mitigation methods around bridge foundations. Based on an experimental perspective, this study is focused on the infuence of the size and position of circular collars from the sediment bed on scour depth at two tandem piers. To meet this end, long-lasting experiments are performed under clear-water conditions using uniform sand for bed materials. Compared to the adjacent position of the collar on the bed, placing the collars below the bed would increase the delay time of scour at the piers up to four times. However, regardless of the delay time, the observations indicate that locating the collars on the initial bed surface results in maximum reduction in scour depths around the piers. It was found that diminishing the fow intensity has a dramatic impact on the scour reduction at the piers, so that maximum reduction in scour depths at piers increased on average from 20 to 70% with the reduction in the fow intensity from 0.95 to 0.9.

Słowa kluczowe

bridge foundation collar countermeasures horseshoe vortex scour depth reduction

fundament mostu kołnierz przeciwdziałanie

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2020

Tom

Vol. 68, no. 1

Strony

229--242

Opis fizyczny

Bibliogr. 51 poz.

Twórcy

autor

Memar Sargol

Department of Water Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Laboratory of Hydraulic Constructions, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland

autor

Zounemat-Kermani Mohammad

zounemat@uk.ac.ir

Department of Water Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

autor

Beheshti Aliasghar

Department of Water Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

autor

Rahimpour Majid

Department of Water Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

autor

De Cesare Giovanni

Laboratory of Hydraulic Constructions, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland

autor

Schleiss Anton J.

Laboratory of Hydraulic Constructions, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)

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Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-70410cf2-2b49-4671-9487-e31f28c95aa6