Sediment incipient motion in sewer with a bed deposit

Wan Mohtar, Wan Hanna Melini and Hin Joo Bong, Charles and Ab Ghani, Aminuddin and Safari, Mir Jafar Sadegh and Taib, Aizat Mohd and Afan, Haitham Abdulmohsin and El-Shafie, Ahmed (2022) Sediment incipient motion in sewer with a bed deposit. Teknik Dergi, 33 (1). pp. 11473-11486. ISSN 1300-3453, DOI

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This paper analyses experimental data on sediment incipient motion with varying sediment bed thickness (of d(50), 5, 10 and 24 mm). Sediment particles (with sizes ranging from 0.5 mm to 4.78 mm) were used to evaluate the effect of deposited bed. Variation of shear velocity estimation was investigated where the critical Shields parameter was expressed using bed-slope product u(*cb), log-law u(*cl )and was extended in terms of critical mean velocity. The critical Shields parameters obtained were significantly lower than the traditional Shields curve when u(*cl) was used compared to u(*cb). Higher critical mean velocity is needed for shallower deposits.

Item Type: Article
Funders: Ministry of Higher Education for the Fundamental Research Grant Scheme[FRGS/1/2018/TK01/UKM/02/4], Universiti Malaysia Sarawak under the MyRA Special Grant Scheme[F02/SpGS/1542/2017]
Uncontrolled Keywords: Threshold criteria of sediment motion;Shields parameter; Sediment bed thickness
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 29 Jul 2022 04:46
Last Modified: 29 Jul 2022 04:46

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