Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring
Countermeasures against local scour at bridge piers and abutments can be grouped into two categories: (1) flow-altering and (2) bed-armouring countermeasures. In this work, long-term laboratory-scale experiments of clear-water scour at bridge piers with different configurations were performed in ord...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Environmental Sciences Proceedings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-4931/21/1/6 |
| _version_ | 1797580190833967104 |
|---|---|
| author | Domenico Ferraro Andrea Fenocchi Roberto Gaudio |
| author_facet | Domenico Ferraro Andrea Fenocchi Roberto Gaudio |
| author_sort | Domenico Ferraro |
| collection | DOAJ |
| description | Countermeasures against local scour at bridge piers and abutments can be grouped into two categories: (1) flow-altering and (2) bed-armouring countermeasures. In this work, long-term laboratory-scale experiments of clear-water scour at bridge piers with different configurations were performed in order to investigate the effects of an unprotected cylindrical pier, of a cylindrical pier with a classic collar countermeasure and of a cylindrical pier with a modified collar countermeasure. Tests were performed in a flume with movable sediment bed, and the scoured bathymetries at the equilibrium stage were acquired and used in numerical simulations of small-scale hydrodynamics at the piers. The modified collar countermeasure resulted in a significant reduction of the scour hole dimensions. |
| first_indexed | 2024-03-10T22:47:51Z |
| format | Article |
| id | doaj.art-f99b9ff6f312484e8b33e40232732f7f |
| institution | Directory Open Access Journal |
| issn | 2673-4931 |
| language | English |
| last_indexed | 2024-03-10T22:47:51Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Environmental Sciences Proceedings |
| spelling | doaj.art-f99b9ff6f312484e8b33e40232732f7f2023-11-19T10:36:54ZengMDPI AGEnvironmental Sciences Proceedings2673-49312022-10-01211610.3390/environsciproc2022021006Hydrodynamics of a Bordered Collar as a Countermeasure against Pier ScouringDomenico Ferraro0Andrea Fenocchi1Roberto Gaudio2Dipartimento di Ingegneria Civile, Università della Calabria, 87036 Rende, CS, ItalyDipartimento di Ingegneria Civile e Architettura, Università degli Studi di Pavia, 27100 Pavia, PV, ItalyDipartimento di Ingegneria Civile, Università della Calabria, 87036 Rende, CS, ItalyCountermeasures against local scour at bridge piers and abutments can be grouped into two categories: (1) flow-altering and (2) bed-armouring countermeasures. In this work, long-term laboratory-scale experiments of clear-water scour at bridge piers with different configurations were performed in order to investigate the effects of an unprotected cylindrical pier, of a cylindrical pier with a classic collar countermeasure and of a cylindrical pier with a modified collar countermeasure. Tests were performed in a flume with movable sediment bed, and the scoured bathymetries at the equilibrium stage were acquired and used in numerical simulations of small-scale hydrodynamics at the piers. The modified collar countermeasure resulted in a significant reduction of the scour hole dimensions.https://www.mdpi.com/2673-4931/21/1/6bridge pierscour hole hydrodynamicsscour countermeasureReynolds-Averaged Navier-Stokes equations |
| spellingShingle | Domenico Ferraro Andrea Fenocchi Roberto Gaudio Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring Environmental Sciences Proceedings bridge pier scour hole hydrodynamics scour countermeasure Reynolds-Averaged Navier-Stokes equations |
| title | Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring |
| title_full | Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring |
| title_fullStr | Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring |
| title_full_unstemmed | Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring |
| title_short | Hydrodynamics of a Bordered Collar as a Countermeasure against Pier Scouring |
| title_sort | hydrodynamics of a bordered collar as a countermeasure against pier scouring |
| topic | bridge pier scour hole hydrodynamics scour countermeasure Reynolds-Averaged Navier-Stokes equations |
| url | https://www.mdpi.com/2673-4931/21/1/6 |
| work_keys_str_mv | AT domenicoferraro hydrodynamicsofaborderedcollarasacountermeasureagainstpierscouring AT andreafenocchi hydrodynamicsofaborderedcollarasacountermeasureagainstpierscouring AT robertogaudio hydrodynamicsofaborderedcollarasacountermeasureagainstpierscouring |