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(Solved): 4. The section of the highway made with 90 degree turn in the below figure. The stiff slope on the ...
4. The section of the highway made with 90 degree turn in the below figure. The stiff slope on the side of the highway was cut to 50 degrees. The joints in the rock at the site form three sets with the following orientations: The below figure shows the alignment of the highway and the orientation of the three sets in the slope. The friction angle of the joint surfaces is 26 . (a) Draw a great circle representing the 50? slope face and a 26? friction circle. (b) Examine the most likely mode of failure, that is, a plane on the following slopes, Plot each case per sheet: - North dipping slopes. - East dipping slope. Figure: Cut slope and geological structures in the cut face.
(a) To draw the great circle representing the 50° slope face and the 26° friction circle, we need to first understand what these terms mean. The slope face refers to the angle at which the rock is cut, while the friction circle refers to the potential failure surface caused by the friction between the rock joints..