From the results of experiments on piles with leading drill and some methods of calculating the bearing capacity of pile to compacted area of soil foundation, the authors can determine the increasing level of load bearing capacity of pile over time and the difference A percent of the bearing capacity of pile between theory and the results of the static pile compression experiment on construction sites. On the thirtieth day, the bearing capacity of pile over time according to Hansbo method is not much different than the static pile compression experiment on construction sites. Thereby, engineers can analyze and evaluate the bearing capacity of pile on construction sites after installation.