A field pumping test was conducted from an aquifer of sandy soil of 4 m thickness confinedbetween two impervious strata. When equilibrium was established, 90 liters of water was pumpedObservation wellsAp-Test wellme7, = 6 mImpermeable stratum= 3 mhz = 2.7 mh, = 2.1 mConfined aquiferHo = 4 mImpermeableout per hour. The water elevation in an observation well 3.0 m away from the test well was 2.1 mand another 6.0 m away was 2.7 m from the roof level of the impervious stratum of the aquifer. Findthe value of k of the soil in m/sec. (

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A field pumping test was conducted from an aquifer of sandy soil of 4 m thickness confined between two impervious strata. When equilibrium was established, 90 liters of water was pumped Observation wells Test well = 6 m Impermeable stratum ,= 3 m h, = 2.7 m h, =2.1 m Ho = 4 m Confined aquifer Impermeable out per hour. The water elevation in an observation well 3.0 m away from the test well was 2.1 m and another 6.0 m away was 2.7 m from the roof level of the impervious stratum of the aquifer. Find the value of k of the soil in m/sec. (

A field pumping test was conducted from an aquifer of sandy soil of 4 m thickness confined between two impervious strata. When equilibrium was established, 90 liters of water was pumped Observation wells Test well = 6 m Impermeable stratum ,= 3 m h, = 2.7 m h, =2.1 m Ho = 4 m Confined aquifer Impermeable out per hour. The water elevation in an observation well 3.0 m away from the test well was 2.1 m and another 6.0 m away was 2.7 m from the roof level of the impervious stratum of the aquifer. Find the value of k of the soil in m/sec. (

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 well was constructed to pump water from a confined aquifer. Two observation wells were constructed at distances of 350 m and 800m respectively. At a steady pumping rate of 0.39 m^3/min, the drawdown in the observation wells were respectively equal to 1.6 m and 7.8 m. Diameter of the test well is 0.95 m and thickness of confined aquifer is 16 m. a. Determine the hydraulic conductivity of the soil in m/min. (IN EXPONENTIAL FORM AND IN 2 DECIMAL PLACES) b. Determine the drawdown at the test well in m. (IN 2 DECIMAL PLACES) c. What is the value of the transmissivity of the confined aquifer in m^2/day? (IN 2 DECIMAL PLACES)
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A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.11 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.94 m. measured from the ground surface and the confined aquifer is 7.6 m. deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 14.9 m³/hour the drawdown in the observation wells. were respectively equal to 1.61 m. and 0.43 m. The distances of the observation wells from the center of the test well were 16 m. and 32 m. respectively. Compute the depth of water at the farthest observation well. Compute the coefficient of permeability in mm/sec. Use 4 decimal places.
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