Evaluation of local scour development around prismatic and non-prismatic bridge piers with different shapes
Other Title(s)
حساب الانجراف الموقعي المتكون حول دعامات الجسور الموشورية و اللاموشورية لأشكال مختلفة
Joint Authors
Nimnim, Haydar Talib
al-Khaqani, Maysam Abd al-Zahrah Jabbar
Source
Issue
Vol. 8, Issue 2 (30 Jun. 2017), pp.88-104, 17 p.
Publisher
University of Kufa Faculty of Engineering
Publication Date
2017-06-30
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
In this study, laboratory experiments were conducted to evaluate the local scour around piers.
Effects of many parameters on the maximum depth of scour and scour pattern around piers have been studied.
The study considered the effects of upstream flow conditions, shape of pier, side slope angles, and type of soil.
Three cross sections for pier (circular, elliptical and oblong) were used for different velocities and discharges to find the scour depth.
Two types of uniform cohesionless soil with median grain sizes of d50=0.25 (bed soil of Al-Kufa river), and d50=0.66 were used as bed material.
Four angles of pier side slope were selected 0° (prismatic pier) and 5°, 10° and 15° (non-prismatic piers).
It has been observed that for circular cross section pier, the maximum reduction for the scour depth at the upstream of the pier with a side slope of 15° for the soil of d50=0.25mm was about 63.64% and for the soil of d50=0.66mm was about 54.55%.
The reduction value was increased up to 80% and 75% for the same angle of pier side slope (e=15°) with oblong cross section for the soil of d50=0.25mm and d50=0.66mm respectively.
American Psychological Association (APA)
Nimnim, Haydar Talib& al-Khaqani, Maysam Abd al-Zahrah Jabbar. 2017. Evaluation of local scour development around prismatic and non-prismatic bridge piers with different shapes. Kufa Journal of Engineering،Vol. 8, no. 2, pp.88-104.
https://search.emarefa.net/detail/BIM-791257
Modern Language Association (MLA)
Nimnim, Haydar Talib& al-Khaqani, Maysam Abd al-Zahrah Jabbar. Evaluation of local scour development around prismatic and non-prismatic bridge piers with different shapes. Kufa Journal of Engineering Vol. 8, no. 2 (Jun. 2017), pp.88-104.
https://search.emarefa.net/detail/BIM-791257
American Medical Association (AMA)
Nimnim, Haydar Talib& al-Khaqani, Maysam Abd al-Zahrah Jabbar. Evaluation of local scour development around prismatic and non-prismatic bridge piers with different shapes. Kufa Journal of Engineering. 2017. Vol. 8, no. 2, pp.88-104.
https://search.emarefa.net/detail/BIM-791257
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 103-104
Record ID
BIM-791257