Initial Maintenance Notes about the First River Ship Lock in Iran

Document Type : Original Article

Authors

1 Manager of Dam and Power Plant Construction, Khuzestan Water and Power Authority (KWPA), Ahwaz, Iran.

2 Ph.D., Department of Civil Engineering, Payame Noor University, Tehran, Iran.

3 Associate Professor of PNU University, Tehran, Iran.

4 Professor of Civil, Architectural & Environmental Engineering, University of Detroit Mercy Civil, Rome, Italy.

10.22044/jhwe.2024.13884.1031

Abstract

Mared Dam in northern Abadan is under construction on the Karun River and it is the first ship lock in Iran. In this study, the ship's lock was examined. Every vessel must pass through this lock in order to transport water from Arvand River to Karun and vice versa. The interior dimensions of the Mared Shipping Lock are 160 meters long, 25 meters wide and 8 meters deep. Several important times are calculated for lock operation. ๐‘‡is the first time the gates open, ๐‘‡15 the time the initial gates remain open until the height difference between the two sides reaches 150 mm, ๐‘‡filled is the duration between the start of the opening the gates till the difference between the two ends becomes zero after ๐‘‡15. Finally, T is the total time required for opening or closing the gates completely. The rotational speeds of the gates range from 5 to 35 radians per minute. Numerical modeling has been used to study fluid behavior and interaction between fluid and gates in flow 3D software. Different lock maintenance scenarios have been analyzed. Important parameters such as inlet and outlet flow rate changes from gates, water depth changes at different times, stress and strain fields, hydrodynamic forces acting on different points of the lock have been calculated. Based on this, the forces acting on hydraulic jacks and gates have been calculated. The minimum time required for the safe passage of the ship through the lock is calculated.

Keywords

References

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Journal of Hydraulic and Water Engineering
Volume 1, Issue 2
January 2024
Pages 143-162

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