A cut slope is to be made in a clayey soil to permit construction of a new highway as shown below. A slope stability analysis is to be performed along the potential shear surface shown in the figure. The soils are silty clays with c' = 18 kPa, phi’ = 20degree. If the shear stress at point A is 60 kPa, compute the factor of safety against sliding at A.

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter15: Slope Stability
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Problem 15.17P
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A cut slope is to be made in a clayey soil to permit construction of a new highway as shown below.
A slope stability analysis is to be performed along the potential shear surface shown in the figure.
The soils are silty clays with c' = 18 kPa, phi’ = 20degree. If the shear stress at point A is 60 kPa,
compute the factor of safety against sliding at A.
e ritag
Existing ground surface
Proposed
- ground surface
y=187 kN/m
49 m
Y= 192 kNim²
Proposed
highway
15.2 m
Potential shear surface
levo ad o
bas
inns
Transcribed Image Text:A cut slope is to be made in a clayey soil to permit construction of a new highway as shown below. A slope stability analysis is to be performed along the potential shear surface shown in the figure. The soils are silty clays with c' = 18 kPa, phi’ = 20degree. If the shear stress at point A is 60 kPa, compute the factor of safety against sliding at A. e ritag Existing ground surface Proposed - ground surface y=187 kN/m 49 m Y= 192 kNim² Proposed highway 15.2 m Potential shear surface levo ad o bas inns
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