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For the cut slope described in Problem 15.11, how deep should the cut be made to ensure a factor of safety of 2.5 against sliding?

For the cut slope described in Problem 15.11, how deep should the cut be made to ensure a factor of safety of 2.5 against sliding?

Structural Analysis
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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Please answer 15.12

15.12 For the cut slope described in Problem 15.11, how deep should the cut be made to ensure a factor of safety of 2.5 against sliding?
Transcribed Image Text:15.12 For the cut slope described in Problem 15.11, how deep should the cut be made to ensure a factor of safety of 2.5 against sliding?
15.11 A cut slope is to be made in a saturated clay. Given: The undrained shear strength, c, = 26 kN/m? (4 = 0 condition), and y = 18.5 kN/m'. The slope makes an angle, B = 55° with the horizontal. Assuming that the critical sliding surface is circular, determine the maximum depth up to which the cut could be made. What is the nature of the critical circle (toe, slope, or midpoint)?
Transcribed Image Text:15.11 A cut slope is to be made in a saturated clay. Given: The undrained shear strength, c, = 26 kN/m? (4 = 0 condition), and y = 18.5 kN/m'. The slope makes an angle, B = 55° with the horizontal. Assuming that the critical sliding surface is circular, determine the maximum depth up to which the cut could be made. What is the nature of the critical circle (toe, slope, or midpoint)?
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