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in Geotechnical Engineering II by (93.7k points)
The factor K, in the radius of the friction circle(Kr sin φ) depends on ____________

(a) Radius of the frictional circle

(b) Frictional resistances offered

(c) Cohesive resistance

(d) Central angle of the slip arc

The question was posed to me during an interview for a job.

This key question is from Friction Circle Method in portion Stability of Slopes of Geotechnical Engineering II

1 Answer

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by (243k points)
The correct answer is (d) Central angle of the slip arc

Explanation: In the frictional circle radius of Kr sin φ, the factor K depends on the central angle δ of the slip arc.

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