Machine-translated by Google. Questions are authored in English.
Top

Discussion

The rock mass rating and the Q system both combine several parameters in order to

  • A.determine the chemical composition of the rock
  • B.predict the depth of weathering above the tunnel
  • C.recommend support for a given ground condition
  • D.measure the intact strength of a rock specimen

Answer: C

Strength, jointing, joint condition, water and stress are scored and combined into a single index, which is then read against empirical support recommendations. Both rest on records of what has worked in comparable ground.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.