Q-4: A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in following figure. The water level rose to 5.4 m above the ground surface in the peizometer installed at p a. Given that kx⇒ k²= k= 4.5 x 10-³ cm/sec, determine i) Depth of upstream water level, H1 ii) How high (above the ground surface) the water will rise if piezometers are placed at points b a iii) The total rate of seepage through the permeable layer per unit length iv) The approximate average hydraulic gradient at c

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Q-4: A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in the
following figure. The water level rose to 5.4 m above the ground surface in the peizometer installed at point
a. Given that kx-kk- 4.5 x 10-³ cm/sec, determine
i) Depth of upstream water level, H1
ii) How high (above the ground surface) the water will rise if piezometers are placed at points b and
iii) The total rate of seepage through the permeable layer per unit length
iv) The approximate average hydraulic gradient at c
Water level
Ground surface
Scale
5 m
H1
►||1
►||1
1.9
Water table
Flow channel 1
Flow channel 2
Flow channel 3
Impervious layer
b
1
b
=
= 1
1 1
b
PS
0.38
Transcribed Image Text:Q-4: A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in the following figure. The water level rose to 5.4 m above the ground surface in the peizometer installed at point a. Given that kx-kk- 4.5 x 10-³ cm/sec, determine i) Depth of upstream water level, H1 ii) How high (above the ground surface) the water will rise if piezometers are placed at points b and iii) The total rate of seepage through the permeable layer per unit length iv) The approximate average hydraulic gradient at c Water level Ground surface Scale 5 m H1 ►||1 ►||1 1.9 Water table Flow channel 1 Flow channel 2 Flow channel 3 Impervious layer b 1 b = = 1 1 1 b PS 0.38
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