Q179
In block caving operation the draw points are placed at 20 m centre to centre, with the pillar width 3.5 m as shown in figure below. The muck is assumed to have zero cohesion and 35 friction angle. The height of draw cone (h) in m is
In block caving operation the draw points are placed at 20 m centre to centre, with the pillar width 3.5 m as shown in figure below. The muck is assumed to have zero cohesion and 35 friction angle. The height of draw cone (h) in m is
A.
12.5
B.
14.6
C.
15.8
AnswerD.
16.5
Answer: Option C
Solution
Answer: Option C
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