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A building on a shallow foundation over a liquefied layer typically suffers

  • A.an increase in its bearing capacity as the soil beneath it becomes denser
  • B.no distress of any kind
  • C.damage confined entirely to its superstructure with the foundation unaffected
  • D.settlement and tilting

Answer: D

With the effective stress gone, the soil cannot carry the bearing pressure, and the building settles and rotates while remaining structurally intact. The apartment blocks that toppled intact at Niigata in 1964 are the classic illustration.

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