MODEL TESTS FOR BEARING CAPACITY IN SAND

Based on the small-scale model tests for determination of the bearing capacity of rough rectangular surface footings with a rough rigid base located at shallow depth, the following conclusions can be drawn: (1) The critical depth of location of the rough rigid base beyond which it has no effect on the value of the ultimate bearing capacity is about 50%-75% higher than that predicted by the theory; and (2) if it is assumed that the theory that predicts the ultimate bearing capacity correctly for the case when the rigid base is at a great depth is correct (i.e., actual value of phi is about 45 deg), it does not correctly predict the ultimate beating capacity for the case when the rigid base is located at a shallow depth. For H/B between approx 2 to 0.6, the experimental bearing capacity is higher than theory and for H/B less than 0.6, the experiment gives lower values than predicted by theory.

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  • Accession Number: 00302217
  • Record Type: Publication
  • Report/Paper Numbers: ASCE 14798 Tech Note
  • Files: TRIS
  • Created Date: Jan 30 1980 12:00AM