Khansaheb, H (2024) Solutions to the sedimentation and maintenance of semi-enclosed channels "How to deal with sedimentations in Dubai Canal?". Doctoral thesis, Liverpool John Moores University.

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Abstract

Dubai Canal, a cornerstone of the city's infrastructure and tourism, is facing a pressing challenge of sedimentation. As the canal plays a vital role in navigation and tourism, addressing the sedimentation problem becomes crucial to ensure its continued significance and operational efficiency. The project aims to study the build-up of sediment in semi-enclosed channels linked to tidal basins and develop solutions to maintenance schemes. The objective was to develop a numerical modeling methodology to predict future sedimentation behaviors and occurrences in Dubai Canal taking in consideration the effects of currents on coastlines. Accordingly, develop mitigation strategies and propose sustainable maintenance schemes to reduce the impacts of sedimentations. The method of investigation was initiated by data collection and sourcing to be used for modelling and validation. Hence, MIKE 3 software was used for modelling the sedimentation occurrences in Dubai Canal based on the numerical solution of the three-dimensional incompressible Reynolds averaged Navier-Stokes equations to calculate both Bed Load Transport & Suspended Load Transport to predict the sediment behaviour in the canal. Based on the model’s findings identifying potential sedimentation in three different locations in Dubai Canal, the project’s outcome was to propose a comprehensive mitigation strategy is proposed, encompassing design changes like tidal flaps, gates, a pumping system, and fountains. Feasibility studies and modeling will validate these alterations. A preventive scheme, featuring real-time monitoring and regular surveys, ensures sustained canal functionality. In addition, future policy recommendations were driven, emphasizing a balance between technical feasibility and financial considerations to preserve Dubai Canal's significance amid evolving sedimentation challenges. The project undertakes a novel approach by using numerical modelling for the first time to solve the sedimentation problem in a man-made marine canal in the Gulf Region, identifying the problem causes and exploring sustainable and efficient maintenance and dredging methods that will result in improving the marine environment and ecotourism, and which are cost efficient.

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	Sedimentation; Numerical Modeling; open water channel
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering
Divisions:	Engineering
SWORD Depositor:	A Symplectic
Date Deposited:	11 Jun 2024 10:11
Last Modified:	11 Jun 2024 10:11
Supervisors:	Jenkinson, I
URI:	https://researchonline.ljmu.ac.uk/id/eprint/23397

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