ESTIMATION OF SCOUR DEPTH DOWNSTREAM OF GRADE-CONTROL STRUCTURES

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RAZAVI NABAVI S.M.; SHAFAI BEJESTAN M.; KASHEFIPOUR M.

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Paper Information

Journal: JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH Year:2012 | Volume:13 | Issue:3 Page(s): 1-14

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Title

ESTIMATION OF SCOUR DEPTH DOWNSTREAM OF GRADE-CONTROL STRUCTURES

Author(s)

RAZAVI NABAVI S.M. | SHAFAI BEJESTAN M. | KASHEFIPOUR M. | Issue Writer Certificate

Keywords

BED STABILIZERQ2

GRADE CONTROL STRUCTUREQ2

HYDRAULIC MODELQ2

RIVERQ3

SCOURQ2

Abstract

Grade control structures are hydraulic structures used to stabilize a RIVER bed. SCOUR downstream of this structure is the main cause of its failure. Studies have developed numerous empirical relations for SCOUR depth prediction that designers must choose between to decide the most effective equation for a specific application. This study tested the condition of submerged jets over beds of sediments (median size=1.5, 2.4, 3.15 mm) downstream of a weir for discharges of 10, 15, 20 l/sec and tail water depths of 16, 21, 26 cm. The analysis applied multi-dimensionless group regression using Minitab software to predict maximum SCOUR depth. All previous relations were compared to the data and it was found that the relations developed by Veronese A, Mason and Arumugam, Agostino and Ferro, and Chee and Padiyar predict the SCOUR depth better than do other relations. In addition, a new relation was developed that produced better results at RMSE=0.015 and coefficient correlation=94%.

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APA: Copy

RAZAVI NABAVI, S.M., SHAFAI BEJESTAN, M., & KASHEFIPOUR, M.. (2012). ESTIMATION OF SCOUR DEPTH DOWNSTREAM OF GRADE-CONTROL STRUCTURES. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 13(3), 1-14. SID. https://sid.ir/paper/28069/en

Vancouver: Copy

RAZAVI NABAVI S.M., SHAFAI BEJESTAN M., KASHEFIPOUR M.. ESTIMATION OF SCOUR DEPTH DOWNSTREAM OF GRADE-CONTROL STRUCTURES. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH[Internet]. 2012;13(3):1-14. Available from: https://sid.ir/paper/28069/en

IEEE: Copy

S.M. RAZAVI NABAVI, M. SHAFAI BEJESTAN, and M. KASHEFIPOUR, “ESTIMATION OF SCOUR DEPTH DOWNSTREAM OF GRADE-CONTROL STRUCTURES,” JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, vol. 13, no. 3, pp. 1–14, 2012, [Online]. Available: https://sid.ir/paper/28069/en

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