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Sankar posted an Question
December 10, 2021 • 19:35 pm 30 points
  • IIT JAM
  • Geology (GG)

44. for a dam site investigation, drilling was carried out up toa depth of 35m. the total length of recovered pieces (over 10cm) adds up to 21m. the rod of the

44. For a dam site investigation, drilling was carried out up toa depth of 35m. the total length of recovered pieces (over 10cm) adds up to 21m. The ROD of the foundation stone i 7o.

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    Saurabh 1 best-answer

    Rock Quality Designation (RQD) can be given as = RQD(in percentage)= (Total length of recovered pieces/Drilling depth)×100 RQD= (21/35)×100= 0.6×100= 60% So RQD=60% is the answer ....

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