Comparison of Bridge Piers Shapes According to Local Scour Countermeasures

Abdulnaser KASHMOOLA; Adnan ISMAEL; Saleh SULEIMAN

Makale detayları

Comparison of Bridge Piers Shapes According to Local Scour Countermeasures

Yazarlar:

Abdulnaser KASHMOOLA | Adnan ISMAEL | Saleh SULEIMAN

Ana Başlıklar:

Uygulamalı fizik

Dergi:

The Eurasia Proceedings of Science Technology Engineering and Mathematics 2019 Vol.6, pp.171-180

Belge Tipi:

Makale

Yayın Tarihi:

7/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000660791

Özet:

 


Comparison
of experimental study was carried out between bridge piers to find out the efficient
bridge pier to countermeasures the local scour. In addition the present study
is to provide a new method to reduce scour depth in front of bridge pier .The
idea of this method is dependent on change the position of two piers (normal
pier (10-4) cm and straight aero foil shaped pier) with respect to flow
direction (named after here as opposite bridge pier and opposite aero foil
pier). The down flow deflected away from the front the opposite piers and the
horseshoe vortex becomes small and does not affect the piers.In the present
study five piers (normal pier (10-4), opposite pier (4-10), straight aero foil,
opposite aero foil and circular) were tested under live-bed condition with flow
intensity 58 l/sec. for duration 3 hrs. The velocity field measurements were
obtained using an Acoustic Doppler Velocimeter. The results showed that the
opposite piers reduce the local scour around the piers. For opposite pier the
reduction of scour depth was about 40% compared with normal pier and 54%
compared with circular pier. The reduction of the scour hole volume was about
83% compared with circular pier and 23.6% when normal pier compared with
circular. For opposite aero foil the maximum depth of scour reduced 58%
compared with straight aero foil and 69% compared with circular pier. The
reduction of the scour hole volume was about 89% compared with circular pier
and straight aero foil reduced scour hole volume about 27% when compared with
circular pier.It is clearly from the comparison that the opposite piers are effective
countermeasures for reducing local scour depth and scour hole volume,
especially opposite aero foil pier. We hope that the results of the present
study will be benefitted by the designers and engineers.

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Makale detayları

Comparison of Bridge Piers Shapes According to Local Scour Countermeasures

Yazarlar: Abdulnaser KASHMOOLA | Adnan ISMAEL | Saleh SULEIMAN

Ana Başlıklar: Uygulamalı fizik

Dergi: The Eurasia Proceedings of Science Technology Engineering and Mathematics 2019 Vol.6, pp.171-180

Belge Tipi: Makale

Yayın Tarihi: 7/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000660791

Sayı

Yazarlar:

Abdulnaser KASHMOOLA | Adnan ISMAEL | Saleh SULEIMAN

Ana Başlıklar:

Uygulamalı fizik

Dergi:

The Eurasia Proceedings of Science Technology Engineering and Mathematics 2019 Vol.6, pp.171-180

Belge Tipi:

Makale

Yayın Tarihi:

7/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000660791