Optimum Design length for Concrete Canal Section for Minimizing Costs of Seepage Losses, Lining and Earthworks
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Keywords:
Canal, Optimum Length, Cost & Economical Ways, Food & Water SecurityAbstract
Earth's life is based on water. It's a rare natural resource. In all its forms, i.e. surface water and g
round water, the distribution of water on earth is not consistent. In many regions, groundwater quality vari
es from fresh to brackish. It may not be appropriate for drinking and irrigation purposes. Surface water has
high-quality fresh water and is primarily used for irrigation purposes by diverting water into canals from
rivers. As this powerful and terrifying device enters the irrigation system, some water is lost. Due to less
water availability and relatively large network disruptions, in the dry spell, and mostly during the winter
season, there is a lack of canal water supply. The losses are much higher in the watercourses than in the
main channel and distributaries. So, the face of the farmer is a severe shortage of irrigation water issues.
Besides this groundwater injection, that is also that which reduces the groundwater level. The conveyance
losses in watercourses can be high by applying these lining methods. To overcome this problem, it is
necessary to work out the optimum lining length to ensure maximum water savings. It is very important to
estimate the losses of water transport in watercourses. In the review, a detailed study was conducted to
measure conveyance losses through the inflow and outflow operational approach. The losses in a
comparable geographical area from both lined and unlined watercourses were measured and used to
calculate the percentage of water savings. In this study, also from field measurements, huge losses during
unlined watercourses and less losses in the lined watercourses have been identified. In this research work,
the percentage of lining is also numerically checked and validated. The percentage of water saving and percentage increase in lining was modelled using optimum lining length for unlined water courses. The
optimum percentage of lining length was estimated as 60 percent, resulting in overall economic benefits
and 90 percent water savings.
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References
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