This is the previous example the answer is there in cgegg: A confined aquifer has been...

This is the previous example the answer is there in cgegg:

A confined aquifer has been fully penetrated with a well of 200 mm diameter The thickness of the aquifer is 25 m. If you know that the well was pumped at a constant rate of 2000 m³/day and the steady state drawdown in the well is 8 m and the drawdown in a piezometer 100 m from the well is 1.4 m. Calculate the following:

Aquifer transmissivity, hydraulic conductivity of the aquifer material and the radius of influence of the well.
If the aquifer is unconfined, Do the calculation again assuming that the saturated thickness is 25 m.

c. Assume the well efficiency is 85 %, calculate the values of T, K and R.

........Design the well in the previous example for the case of confined aquifer by finding the following:

Screen length and size.
Delivery pipe diameter.
Calculate the power needed for this well.
Draw schematic diagram for the well and define all parts.

Assume any missing data.

Expert Solution

Ally Wells answered 8 months ago

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