Characteristics of Flow and Sedimentation due to Variations in Sluice Gate Openings in the Langnga Irrigation Secondary Channel, Pinrang Regency

International Journal of Civil Engineering

© 2025 by SSRG - IJCE Journal

Volume 12 Issue 12

Year of Publication : 2025

Authors : Alfiah Nurliana Basruddin, Farouk Maricar, Bambang Bakri

10.14445/23488352/IJCE-V12I12P110

How to Cite?

Alfiah Nurliana Basruddin, Farouk Maricar, Bambang Bakri, "Characteristics of Flow and Sedimentation due to Variations in Sluice Gate Openings in the Langnga Irrigation Secondary Channel, Pinrang Regency," SSRG International Journal of Civil Engineering, vol. 12,  no. 12, pp. 102-109, 2025. Crossref, https://doi.org/10.14445/23488352/IJCE-V12I12P110

Abstract:

This study aims to analyze the effect of variations in sluice gate openings on the flow speed and concentration of sediment drifting in the secondary channel of Langnga Irrigation. The variety of sluice gate openings used consists of three conditions, namely 40 cm, 60 cm, and 80 cm. Flow velocity measurements were performed at three vertical depth points (0.2 m, 0.6 m, and 0.8 m from the surface), while drifting sediment sampling was performed at three different survey points. The data obtained shows that the larger the sluice gate opening, the flow speed tends to increase. This increase in flow speed has an effect on the decrease in the concentration of sediment floating along the channel. This is due to the greater ability of the flow to transport fine particles, so that it is difficult for sedimentary particles to settle at the observation point. The highest sediment concentration value was obtained at the 40 cm opening of 0.83 mg/l, while the lowest was at the 80 cm opening of 0.74 mg/l. The results of this study show that the regulation of sluice gate openings plays an important role in sediment control in open irrigation systems.

Keywords:

Sluice gate opening, Flow speed, Sediment drifting, Secondary channel, Irrigation.

References:

[1] Alvito Brafiant, Tri Budi Prayogo, and Siswoyo Day, “Analysis of Irrigation Channel Efficiency in Talangagung District, Molek Irrigation Area, Malang Regency,” Journal of Water Resources Technology and Engineering, vol. 4, no. 2, pp. 1249-1260, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[2] KATA PENGANTAR, Modul 5 Hidrolika Sungai, 2022. [Online]. Available:
https://sibangkoman.pu.go.id/center/pelatihan/uploads/edok/2024/10/c9ec6_05._Modul_5_Hidrolika_Sungai.pdf
[3] Syahrul Ramadhan, “Sedimentation Transport Study in the Tomoni River Flow, East Luwu Regency,” Journal Ilmiah Ecosystem, vol. 23, no. 3, pp. 733-745, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[4] Syamsu Alam, Andi Rumpang Yusuf, and Burhanuddin Badrun, “The Effect of Sedimentation on the Discharge of the Parota Secondary Channel in the Sanrego Irrigation Network, Bone Regency,” Consolidated Journal of Civil Engineering Research, vol. 2, no. 2, pp. 127-133, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[5] Anggi Hermawan, and Erwin Nur Afiato, “Analysis of Bed Load Sediment Transport in Mataram Yogyakarta Irrigation Channel,” Technical, vol. 26, no. 1, pp. 20-30, 2021.
[CrossRef] [Google Scholar] [Publisher Link]
[6] Sartika Ananta Hanun, Nurhayati Nurhayati, and Umar Umar, “Analysis of Drifting Sediment Transport in the Downstream Section of the Raya Dalam River Drainage Channel, Peri-Urban Pontianak City, West Kalimantan,” Journal of Wetland Environmental Technology, vol. 13, no. 1, pp. 171-179, 2025.
[CrossRef] [Google Scholar] [Publisher Link]
[7] Ven Te Chow, Open Channel Hydraulics, Jakarta: Penerbit Erlangga, 1989.
[Publisher Link]
[8] V.A. Vanoni, Chapter 2: Sediment Transportation Mechanics, Sedimentation Engineering, ASCE, pp. 11-189, 2006.
[CrossRef] [Google Scholar] [Publisher Link]
[9] Pradipta Nandi Wardhana, “Analysis of Sediment Transport of the OPAK River using the HEC-RAS 4.1.0 Program,” Technical, vol. 20, no. 1, pp. 22-31, 2015.
[Google Scholar] [Publisher Link]