Determine the following:a) depth of water in the test well is ______ mb) Transmissbility of the impermeable layer is _____ sq.m/sc) 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 impermeablelayer with a depth of 35m. A pumping test was conducted to determine the coefficient of permeability of the aquifer. The initial piezometricsurface was 15m below the ground surface datum of the test well and observation wells. After water was pumped at rate of 13 lit/sec forseveral 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 10mfrom the test well and 2.4 m in the second observation well at a distance 30m.20 m15 mWater level intest well如13Observation wellsImpermeable LayerConfined Aquifer

To find depth: Determine the saturated thickness of aquifier before pumping ; h0 = depth of surface…

Answered: Permeability of the aquifer is ____ m/s

Engineering

Civil Engineering

Permeability of the aquifer is ____ m/s

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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Concept explainers

Groundwater Flow

The term groundwater refers to the water which is found beneath the earth's surface. Pores present in the soil and rocks with fractures make a passage for rainwater to enter the earth's surface and deposit as groundwater. The flow nature and direction of groundwater under the earth's surface directly impacts the strength and compressibility of the soil, which reflects its ability to support structural loads.

Question

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

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