Please answer 15.12 15.12 For the cut slope described in Problem 15.11, how deep should the cut be made toensure 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 anangle, B = 55° with the horizontal. Assuming that the critical sliding surface iscircular, determine the maximum depth up to which the cut could be made. Whatis the nature of the critical circle (toe, slope, or midpoint)?

Given: The factor of safety is 2.5. The unit weight of soil is 18.5 kN/m3. The undrained shear…

Answered: For the cut slope described in Problem…

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?

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

Section: Chapter Questions

Problem 15.30P

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Question

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?

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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