Tunnel Engineering

High pressure grouting is generally restored for concreting in the lining if the rock strata is:

  • A. Highly fissured
  • B. Poor
  • C. Likely to get seepage of water
  • D. All of the above
Answer: Option D.

IS 14665 gives details about elevators. It specifies the number, capacityof elevator and number of floors to be served.

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