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Bearing capacity factor Nq

Reference values of the bearing capacity factor Nq are listed in the table. If jet grouting is used when constructing the pile, then the maximum angle of internal friction φ is equal to 28°.

Bearing capacity factor Nq

Angle of internal friction φ [°] 26 28 30 31 32 33 34 35 36 37 38 39 40
Bearing capacity factor Nq for driven piles 10 15 21 24 29 35 42 50 62 77 86 120 145
Bearing capacity factor
Nq   for bored piles
5 8 10 12 14 17 21 25 30 38 43 60 72


Literature:

NAVFAC DM 7.2, Foundation and Earth Structures, U.S. Department of the

Navy, 1984.




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