Calculate the percentage core recovery

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ENGIN5514 Production Drilling and Blasting - Federation University Australia

Early Invention Assignment

Question 1. Explain the importance of core barrels in diamond drilling.

Question 2. Explain the tensile slabbing mechanism in rock breakage with proper diagram.

Question 3. Modern explosives are made up of oxidisers, fuels, sensitisers and other ingredients. Give examples of these for:
a. ANFO
b. Heavy ANFO
c. Emulsion

Question 4. A 5 m. core drill was carried out. Calculate the percentage core recovery and Rock Quality Designation (RQD) for the given length of core pieces: 50 cm, 2.1 m, 5 cm, 25 cm, 1.54 m, 46 cm.

Attachment:- Production Drilling and Blasting.rar

Reference no: EM132888625

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