, the factor of safety against the failure of slope under
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![An unsupported slope of height 15 m is shown in the figure (not to scale), in which
the slope face makes an angle 50° with the horizontal. The slope material comprises
purely cohesive soil having undrained cohesion 75 kPa. A trial slip circle KLM with a
radius 25 m, passes through the crest and toe of the slope and it subtends an angle
60° at its centre O. The weight of the active soil mass (W, bounded by KLMN) is 2500
kN/m, which is acting at a horizontal distance of 10 m from toe of the slope. Consider
the water table to be present at a very large depth from the ground surface.
K
60°
F
50⁰
10 m
25 m
W
L
M
700
15 m-
Considering the trial slip circle KLM, the factor of safety against the failure of slope under
undrained condition (round off to two decimal places) is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5de52af2-3790-44fa-ab2e-3982b181ac2f%2Fd373538e-ab96-4628-8bb4-b061d442b2d3%2Fc7inp5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An unsupported slope of height 15 m is shown in the figure (not to scale), in which
the slope face makes an angle 50° with the horizontal. The slope material comprises
purely cohesive soil having undrained cohesion 75 kPa. A trial slip circle KLM with a
radius 25 m, passes through the crest and toe of the slope and it subtends an angle
60° at its centre O. The weight of the active soil mass (W, bounded by KLMN) is 2500
kN/m, which is acting at a horizontal distance of 10 m from toe of the slope. Consider
the water table to be present at a very large depth from the ground surface.
K
60°
F
50⁰
10 m
25 m
W
L
M
700
15 m-
Considering the trial slip circle KLM, the factor of safety against the failure of slope under
undrained condition (round off to two decimal places) is
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