Estimation of Uplift Pile Capacity in the Sand Layers

There are several methods available to analyze and evaluate the ultimate uplift capacity of pile in the sand layers, based on a homogeneous soil layer. This research compares the three estimations of ultimate uplift capacity of pile developed by Kulhawy et al (1979); Das (1983) and Chattopadhyay and Pise (1986). Since the field experiment did not reach the failure state, the Modified Mazurkiewicz method has been used to predict ultimate uplift capacity of piles. It is found that Kulhawy et al (1979) ultimate uplift capacity is closed to field data, providing the highest safety. In contrast, the ultimate uplift capacity by Chattopadhyay and Pise (1986) method shows the highest difference from the ultimate uplift capacity.