Any rule of thumb when estimating uplift capacity of piles?
We have piles (300 dia, between 2m and 3m deep) embedded in a mixture of cohesive and granular soils. Su in cohesive range between 70kPa to 150kPa. DCP readings of between 2 & 3 in granular (50mm increments).
We are doing pullout test at construction stage to confirm but want an estimate for design purposes.