Lesson 2/Practice Exercise
12.
What two types of initial cuts would you use to establish the initial, vertical quarry face?
a.
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b.
__________________
13.
Occasionally a quarry face must be operated with rock layer or fracture surfaces inclined either
into or away from the face. In such cases, is it easier to maintain a vertical face when the
features dip toward or away from the face? Explain your answer. _________________________
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