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Pier scour within long contraction in cohesive sediment bed

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Abstract

In the present study, an attempt has been made to study the bridge pier scour embedded long contraction for the bed sediment prepared by a mixture of clay and fine sand with varying proportions having a specific range of antecedent moisture content. Results particularly focused on the clay–sand mixed cohesive bed at varying clay fractions of the sediment bed, approach flow velocity, contraction ratio and different pier shapes, on maximum equilibrium scour depth for pier scour within long contraction. Further, regression based equations for the estimation of non-dimensional maximum scour depth for piers within long contraction in clay–sand mixed cohesive bed embedded were proposed.

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Authors and Affiliations

  1. Department of Geological Sciences, Jadavpur University, Kolkata, West Bengal, 700032, India

    Susanta Chaudhuri

  2. Department of Mechanical Engineering, SRM University, Kattankulathur, Tamil Nadu, 603203, India

    Santosh Kumar Singh

  3. Fluid Mechanics and Hydraulics Laboratory, Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, West Bengal, 711103, India

    Koustuv Debnath & Mrinal K. Manik

Authors
  1. Susanta Chaudhuri
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  2. Santosh Kumar Singh
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  3. Koustuv Debnath
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  4. Mrinal K. Manik
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Correspondence to Santosh Kumar Singh.

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Chaudhuri, S., Singh, S.K., Debnath, K. et al. Pier scour within long contraction in cohesive sediment bed. Environ Fluid Mech 18, 417–441 (2018). https://doi.org/10.1007/s10652-017-9560-x

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  • DOI: https://doi.org/10.1007/s10652-017-9560-x

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