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5. A confined aquifer is 50 m thick and 0.5 km wide. Two observation wells are located 1.4 km apart in the direction of flow. Head in well 1 is 50.0 m and in well 2 is 42 m. Hydraulic conductivity K is 0.7 m/day. a. What is the total daily flow of water through the aquifer? b. What is the height z of the piezometric surface 0.5 km from well 1 and 0.9 km from well 2? 1000 105

5. A confined aquifer is 50 m thick and 0.5 km wide. Two observation wells are located 1.4 km apart in the direction of flow. Head in well 1 is 50.0 m and in well 2 is 42 m. Hydraulic conductivity K is 0.7 m/day. a. What is the total daily flow of water through the aquifer? b. What is the height z of the piezometric surface 0.5 km from well 1 and 0.9 km from well 2? 1000 105

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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5. A confined aquifer is 50 m thick and 0.5 km wide. Two observation wells are located 1.4 km apart in the direction of flow. Head in well 1 is 50.0 m and in well 2 is 42 m. Hydraulic conductivity K is 0.7 m/day. a. What is the total daily flow of water through the aquifer? b. What is the height z of the piezometric surface 0.5 km from well 1 and 0.9 km from well 2? 6. Two piezometers are located 1000 ft apart with the bottom located at depths of 50 ft and 350 ft, respectively, in a 400-ft-thick unconfined aquifer. The depth to the water table is 50 ft in the deeper piezometer and 40 ft in the shallow one. Assume that hydraulic conductivity is 0.0002 ft/s. a. Use the Dupuit equation to calculate the height of the water table midway between the piezometers. b. Find the flow rate per unit thickness for a section midway between the wells.
Transcribed Image Text:5. A confined aquifer is 50 m thick and 0.5 km wide. Two observation wells are located 1.4 km apart in the direction of flow. Head in well 1 is 50.0 m and in well 2 is 42 m. Hydraulic conductivity K is 0.7 m/day. a. What is the total daily flow of water through the aquifer? b. What is the height z of the piezometric surface 0.5 km from well 1 and 0.9 km from well 2? 6. Two piezometers are located 1000 ft apart with the bottom located at depths of 50 ft and 350 ft, respectively, in a 400-ft-thick unconfined aquifer. The depth to the water table is 50 ft in the deeper piezometer and 40 ft in the shallow one. Assume that hydraulic conductivity is 0.0002 ft/s. a. Use the Dupuit equation to calculate the height of the water table midway between the piezometers. b. Find the flow rate per unit thickness for a section midway between the wells.
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