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Permeability of the aquifer is ____ m/s

Permeability of the aquifer is ____ m/s

Structural Analysis
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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Determine the following:

a) depth of water in the test well is  ______ m

b) Transmissbility of the impermeable layer is _____ sq.m/s

c) Permeability of the aquifer is ____ m/s

A well with 0.6 diameter is constructed in a confined aquifer. The sand aquifer has a uniform thickness of 15m overlain by an impermeable layer with a depth of 35m. A pumping test was conducted to determine the coefficient of permeability of the aquifer. The initial piezometric surface was 15m below the ground surface datum of the test well and observation wells. After water was pumped at rate of 13 lit/sec for several days, water levels in the wells stabilized with the following drawdowns, 6.4 m in the test well, 3.7 m in the observation well 10m from the test well and 2.4 m in the second observation well at a distance 30m. 20 m 15 m Water level in test well 如 13 Observation wells Impermeable Layer Confined Aquifer
Transcribed Image Text:A well with 0.6 diameter is constructed in a confined aquifer. The sand aquifer has a uniform thickness of 15m overlain by an impermeable layer with a depth of 35m. A pumping test was conducted to determine the coefficient of permeability of the aquifer. The initial piezometric surface was 15m below the ground surface datum of the test well and observation wells. After water was pumped at rate of 13 lit/sec for several days, water levels in the wells stabilized with the following drawdowns, 6.4 m in the test well, 3.7 m in the observation well 10m from the test well and 2.4 m in the second observation well at a distance 30m. 20 m 15 m Water level in test well 如 13 Observation wells Impermeable Layer Confined Aquifer
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