5.15 A cut slope was excavated in a saturated clay with a slope angle, B = 48; with the horizontal. Slope failure occured when the cut reached a depth of 10 m. Previous soil explorations showed that a rock layer was located at a depth of 14 m below the ground surface. Assuming an undrained condition and y = 17 kN/m²: a. Determine the undrained cohesion of the clay (Figure 15.13). b. What was the nature of the critical circle? c. With reference to the top of the slope, at what distance did the surface of the sliding intersect the bottom of the excavation?

5.15 A cut slope was excavated in a saturated clay with a slope angle, B = 48; with the horizontal. Slope failure occured when the cut reached a depth of 10 m. Previous soil explorations showed that a rock layer was located at a depth of 14 m below the ground surface. Assuming an undrained condition and y = 17 kN/m²: a. Determine the undrained cohesion of the clay (Figure 15.13). b. What was the nature of the critical circle? c. With reference to the top of the slope, at what distance did the surface of the sliding intersect the bottom of the excavation?

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter16: Lateral Earth Pressure

Section: Chapter Questions

Problem 16.4P: In Problem 16.3, if there was a surcharge of 20 kN/m2 at the ground level, what would be the total...

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