ABSTRACT
In the design of pile foundations, two critical soil parameters of shear modulus and limiting friction along pile-soil interface are generally required. Because they vary from site to site, they must be determined for each location. This can be very costly if done through laboratory and/or in situ tests. In practice, these parameters may be gained through some correlations with in situ tests. Typical correlations are reviewed here concerning two common types of Standard Penetration Tests (SPT) and Cone Penetration Tests (CPT).
