GATE CE 2024 Set 1 — Question 35
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Water Resources Engineering → Hydrographs & Groundwater → Steady-State Well Hydraulics
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Question
A diameter well fully penetrates an unconfined aquifer of saturated thickness with hydraulic conductivity of . Under the steady pumping rate for a long time, the drawdowns in two observation wells located at and from the pumping well are and , respectively. The corresponding pumping rate (in ) from the well is _____________ (rounded off to decimal places).
Correct answer
1852 to 1858
Solution
Given:
Hydraulic conductivity,
Saturated thickness of unconfined aquifer,
Observation well : , drawdown
Observation well : , drawdown For an unconfined aquifer, the steady-state discharge is given by Thiem's equation:
Rounding off to decimal places, the pumping rate is .
Hydraulic conductivity,
Saturated thickness of unconfined aquifer,
Observation well : , drawdown
Observation well : , drawdown For an unconfined aquifer, the steady-state discharge is given by Thiem's equation:
Rounding off to decimal places, the pumping rate is .
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