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The ‘dead storage’ in a dam reservoir, is the available volume for collection of silt and sediment, between
When the reservoir is filled up, certain amount of water seeps into the permeable reservoir banks. This water comes out as seen as the reservoir gets depleted. This volume of water is known as bank storage. The bank storage efficiently increases the capacity of the reservoir.
With the reduction in reservoir capacity over the passage of time, the trap efficiency
Capacityinflow ratio for a storage reservoir is defined as
Capacityinflow ratio can be defined as the ratio of the reservoir capacity to the total inflow of water. The trap efficient is a function of the capacityinflow ratio which is represented by a graph between them.
With the increase in its capacityinflow ratio, the trap efficiency of a reservoir:
As the height of a proposed dam is increased, the cost per unit of storage
“Economical height of a Dam” is that height, for which the
The economic height of a dam is that height of dam, corresponding to which, the cost of the dam per unit of storage is minimum.
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