A flownet below a dam consists of 24equipotential drops and 7 flow channels.The difference between the upstreamand downstream water levels is 6 m. Thelength of the flow line adjacent to the toeof the dam at exit is 1 m. The specificgravity and void ratio of the soil belowthe dam are 2.70 and 0.70, respectively.The factor of safety against piping isA1.67B 2.5C 3.4сD 4

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A flownet below a dam consists of 24 equipotential drops and 7 flow channels. The difference between the upstream and downstream water levels is 6 m. The length of the flow line adjacent to the toe

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.6P

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Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

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A flownet below a dam consists of 24
equipotential drops and 7 flow channels.
The difference between the upstream
and downstream water levels is 6 m. The
length of the flow line adjacent to the toe
of the dam at exit is 1 m. The specific
gravity and void ratio of the soil below
the dam are 2.70 and 0.70, respectively.
The factor of safety against piping is
A
1.67
B 2.5
C 3.4
с
D 4

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