13. A 300mm diameter test well penetrates 27m below static water table. After 24 hours of pumping at 6.9liters/second. The water level in an observation well at a distance of 95m from the test well is lowered 0.5m and the other observation well at a distance of 35m from the test well, the drawdown is 1.1m. Determine the coefficient of permeability of the aquifer in m/day 60.27 b. 6.03 e. 70.27 f. 7.03 a.

13. A 300mm diameter test well penetrates 27m below static water table. After 24 hours of pumping at 6.9liters/second. The water level in an observation well at a distance of 95m from the test well is lowered 0.5m and the other observation well at a distance of 35m from the test well, the drawdown is 1.1m. Determine the coefficient of permeability of the aquifer in m/day 60.27 b. 6.03 e. 70.27 f. 7.03 a.

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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14. A 300 mm diameter test well penetrates 24 m below the static water table. After 24 hours of pumping at 69 liters/sec, the water level in an observation well at a distance of 96 m from the test well is lowered 0.60 m and the other observation well at a distance of 34 m from the test well, the drawdown is 1.2 m. Compute the coefficient of permeability of the unconfined aquifer in m/day. Compute the transmissivity of the unconfined aquifer in m2/day. Compute the transmissivity if there is a confined aquifer of 8m, thick below the unconfined aquifer m2/day.
A 300 mm diameter test well penetrates 24 m. below the static water table. After 24 hours of pumping at 69 liters per second, the water level in an observation well at a distance of 96 m. from the test well is lowered by 0.60 and the other observation well at a distance of 34 m. from the test well, the drawdown is 1.2 m a) Compute the coefficient of permeability of the unconfined aquifer b) Compute the transmissivity of the unconfined aquifer.
A 300 mm diameter test well penetrates 24 m below the static water table. After 24 hours of pumping at 70 liters per second, the water level in an observation well at a distance of 96 m from the test well is lowered by 0.60 m and the other observation well at a distance of 34 m from the test well, the drawdown is 1.2 m. 1. Compute the coefficient if permeability of the unconfined aquifer in m/day. 2. Compute the transmissibility of the unconfined aquifer in m2/day.
A 30 cm well penetrates 45 m below the static water table. After a long period of pumping at a rate of 1200 lpm, the drawdown in the wells 20 m and 45 m from the pumped well is found to be 3.8 and 2.4 m respectively. Determine the transmissivity (-K*aquifer thickness) of the aquifer. What is the drawdown in the pumped well? [Hint: Use water table depth as aquifer thickness in the case of unconfined aquifer]
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