Question

Design a sinking cut in limestone. The cut will be 18 ft deep, 40 ft wide, and 60 ft long. The limestone is bedded, with thick beds (4 to 8 ft thick), and relatively few joints, mostly vertical ornear vertical. Use 2.5 inch diameter blastholes, and assume that most holes will be wet. Determine the following:a.Sketch the blast and indicate your proposed timing sequenceb.Total explosive (lbs) neededc.Total stemming (ft) neededd.Total drill length and Powder factor.​

Answer 1

Answer:

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