Question

A pump is used to keep dry a deep excavation that is located in a land whose water table is very high. It is necessary to pump water (20°C) outside the excavation whose upper elevation lies at an altitude of 15 feet above the level of the water into the excavation. You will be using a submersible pump with a capacity of 3.2 hp, operating at an efficiency of 65%. It is necessary to reduce the amount of water accumulated in exactly 3 feet in a 6 hour period in such a way that you could start to place the molds for the concrete of the shoe of a structure. Determine if this goal can be achieved. The area of the excavation with the accumulated water is 150 112.

Answer 1

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