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.