A confined aquifer has an average thickness of 20 m. Two fully penetrating wells are used to monitor the water quality of the aquifer (see figure). Well A is pumped with a discharge of 1000 m³/day while well B is only used as an observation well. Pumping well A will result in water surface drop of 2 m. Well A diameter = 2 m, Well B diameter = 0.5 m, Distance between the two wells (center to center) = 500 m, Soil Porosity = 30%. Answer the following questions. WELL B WELL A 2m Flow 20 m Confined aquifer

A confined aquifer has an average thickness of 20 m. Two fully penetrating wells are used to monitor the water quality of the aquifer (see figure). Well A is pumped with a discharge of 1000 m³/day while well B is only used as an observation well. Pumping well A will result in water surface drop of 2 m. Well A diameter = 2 m, Well B diameter = 0.5 m, Distance between the two wells (center to center) = 500 m, Soil Porosity = 30%. Answer the following questions. WELL B WELL A 2m Flow 20 m Confined aquifer

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A 30 cm diameter well completely 15 points penetrates a confined aquifer of permeability of 45 m/day. The thickness of the aquifer is 20 m. Under steady state of pumping the drawdown at the well found to be 3.0 m and the radius of influence was 300 m. Calculate the discharge of the well * Pumping well dia = 2r + Original piezometric surface Piezometric surface under pumping Aquiclude Flow Confined aquifer Aquiclude Well Operating in a Confined Aquifer 1.548 m^3/min 0.0258 m^3/min 0.258 m^3/min 0.0851 m^3/min
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1 st question
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