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Article

Application of a Single Porous Basket as a Pier Scour Countermeasure

1
Department of Hydraulics and Ocean Engineering, National Cheng Kung University, Tainan 701401, Taiwan
2
Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editors: Michele Palermo and Stefano Pagliara
Water 2021, 13(21), 3052; https://doi.org/10.3390/w13213052
Received: 31 August 2021 / Revised: 30 October 2021 / Accepted: 30 October 2021 / Published: 1 November 2021
(This article belongs to the Special Issue Erosion Processes in Hydraulic Engineering)
This paper presents a study on bridge pier protection with a single porous basket (SPB) in clear-water experiments. The SPB is a type of combined flow-altering countermeasure. The SPB was installed at a distance ahead of the protected pier. After a series of tests, the results showed that appropriate installation of the SPB was able to effectively adjust the flow pattern to reduce the down-flow motion and horseshoe vortex ahead of the pier. Dominant factors for the pier protection—considered for all tests—included the distance between the basket and pier, submerged depth of the basket, basket length, pier diameter, basket diameter, hole size, porosity, and the flow approaching angle. After evaluating these parameters through laboratory tests, the results of protection were optimized. In optimal conditions, the SPB was able to provide maximum pier protection and decrease the maximum scour depth by as much as 75.53%. View Full-Text
Keywords: porous cylinder; scour protection; bridge pier porous cylinder; scour protection; bridge pier
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MDPI and ACS Style

Lee, W.-L.; Lu, C.-W.; Huang, C.-K. Application of a Single Porous Basket as a Pier Scour Countermeasure. Water 2021, 13, 3052. https://doi.org/10.3390/w13213052

AMA Style

Lee W-L, Lu C-W, Huang C-K. Application of a Single Porous Basket as a Pier Scour Countermeasure. Water. 2021; 13(21):3052. https://doi.org/10.3390/w13213052

Chicago/Turabian Style

Lee, Wei-Lin, Chih-Wei Lu, and Chin-Kun Huang. 2021. "Application of a Single Porous Basket as a Pier Scour Countermeasure" Water 13, no. 21: 3052. https://doi.org/10.3390/w13213052

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