A confined aquifer has a thickness of 30m (m) and is fully penetrated by well where the aquifer is pumped at the rate of 500 litres per second. The groundwater thickness (H₁) is 50 m. The drawdown measured in two observation wells located at distance of 10 m and 100 m from the well are 7.5 m and 0.5m respectively. Determine the average hydraulic conductivity of the aquifer. At what distance from the well the drawdown is insignificant i.e. is zero (R). The figure below gives an illustration of the confined aquider set-up.
A confined aquifer has a thickness of 30m (m) and is fully penetrated by well where the aquifer is pumped at the rate of 500 litres per second. The groundwater thickness (H₁) is 50 m. The drawdown measured in two observation wells located at distance of 10 m and 100 m from the well are 7.5 m and 0.5m respectively. Determine the average hydraulic conductivity of the aquifer. At what distance from the well the drawdown is insignificant i.e. is zero (R). The figure below gives an illustration of the confined aquider set-up.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A confined aquifer has a thickness of 30m (m) and is fully penetrated by well where the
aquifer is pumped at the rate of 500 litres per second. The groundwater thickness (H₁) is
50 m. The drawdown measured in two observation wells located at distance of 10 m and
100 m from the well are 7.5 m and 0.5m respectively. Determine the average hydraulic
conductivity of the aquifer. At what distance from the well the drawdown is insignificant
i.e. is zero (R). The figure below gives an illustration of the confined aquider set-up.
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