Live-Bed Scour Depth Modelling Around the Bridge Pier Using ANN-PSO, ANFIS, MARS, and M5Tree

Baranwal, Anubhav; Das, Bhabani Shankar

doi:10.1007/s11269-024-03879-9

Cited by 7 publications

(1 citation statement)

References 79 publications

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“…The combination of these two effects leads to the formation of a scour hole around the pier. This leads to the formation of vortices, which can cause the bed material to start eroding (Melville andRaudkivi 1977, Baranwal andDas 2024). (b) Development Stage: As the vortices become more substantial, they erode the bed material around the pier, forming a depression.…”

Section: Mechanism Of Scouring Around Bridge Piersmentioning

confidence: 99%

Scouring around bridge pier: a comprehensive review of countermeasure techniques

Baranwal,

Das

2024

Eng. Res. Express

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Scouring around bridge piers significantly threatens bridge stability and can cause tragic failures if not addressed effectively. Several remedial techniques have been developed to reduce local scour depth around bridge piers, including using scour countermeasures such as riprap, collar plate, slot, submerged vane, sacrificial pile, etc. These countermeasures can be used alone or in combination to provide additional protection against local scour. The selection of countermeasures depends on flow velocity, river bed sediment type, and bridge geometry. A thorough analysis of these factors is necessary before selecting a countermeasure. In this paper, an attempt has been made to summarize the efficiency of different remedial techniques to reduce scour depth around the bridge pier. The stability of the bed armouring device depends on its depth and installation position around the bridge pier, and its efficiency decreases as flow velocity increases. It is found that significant scour protection devices are more efficient in clear water scouring (CWS) conditions (V/Vc1.0) than live bed scouring (LBS) conditions (V/Vc>1.0). The combination of flow-altering devices is crucial in reducing scour, with a collar plate and slot combination being more effective than a single slot. The findings of this review paper are to provide a valuable resource for engineers and policymakers seeking to design and implement effective strategies for mitigating local scour around bridge piers.Keywords: Local scour, bridge pier, remedial technique, bed armouring devices, flow-altering devices

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Section: Mechanism Of Scouring Around Bridge Piersmentioning

confidence: 99%