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What is the main advantage of rotary drilling over auger boring...

This question belongs to Geological Engineering Site Investigation And Geotechnical Exploration
Site Investigation and Geotechnical Exploration
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What is the main advantage of rotary drilling over auger boring?

Answer & Solution
Correct Answer: Option C
Rotary drilling is suitable for hard strata and deep formations, which auger boring cannot efficiently penetrate.It uses a rotating drill bit with circulating fluid to cut through rock.
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