Scour at side by side pier and abutment with debris accumulation

Rahimi, Ebrahim; Qaderi, Kourosh; Rahimpour, Majid; Ahmadi, Mohammad Mehdi; Madadi, Mohamad Reza

doi:10.1080/1064119x.2020.1716122

Cited by 6 publications

(3 citation statements)

References 26 publications

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“…Unfortunately, numerous instances of bridge collapse in the United States have been directly linked to scour [2][3][4]. Accurately predicting scour depths requires nuanced consideration of debris effects, leading to extensive experimental studies to evaluate these intricacies [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Enhancing pier local scour prediction in the presence of floating debris

Al-Jubouri,

Ray

2024

Pollack

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Local scour poses a grave threat to bridge foundations, potentially causing catastrophic collapses. This study uses FLOW-3D with the Reynolds-Averaged Navier-Stokes model to analyze pier scour and dune formation under bridges. It focuses on submerged debris shapes near the water's surface. Results closely match experiments when specific conditions are met. The study introduces an innovative approach to debris impact assessment. Instead of traditional methods, it proposes a novel equation accounting for debris's effective area and elevation. This enhances reliability by over 20%, improving scour depth assessment in debris-laden scenarios. This advances the understanding of debris's role in local scour, benefiting bridge design and management practices.

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Section: Introductionmentioning

confidence: 99%

Enhancing pier local scour prediction in the presence of floating debris

Al-Jubouri,

Ray

2024

Pollack

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“…Floating debris also called large woody debris (LWD) [56] or driftwood [57,58], refers to the fragments of tree trunks, branches, eroded materials, which are mainly found in areas where trees are growing near the river banks [59,60]. Many studies indicate that the accumulation of such floating objects upstream of the pier leads to an increase in the effective width of the pier, increase the shear stress, change the flow pattern, turbulence, and, consequently, the scouring mechanism, increasing the risk of bridge failure [18,59,[69][70][71][61][62][63][64][65][66][67][68].…”

Section: Introductionmentioning

confidence: 99%

“…They related the scour depth around the bridge pier to the blockage ratio due to debris accumulation. Additional studies by [37,70,71,75] showed that the location and shape of debris accumulation has a considerable impact on the final scour depth.…”

Section: Introductionmentioning

confidence: 99%