Application Of Differential Evolution In Optimal Prediction Of Ultimate Bearing Capacity Of Single Pile

It is very important to use limited measured data to determine the ultimate bearing capacity of the pile accurately.Differential Evolution (DE) is a new inherently parallel and global evolutionary computation method, especially suit for solving continuous space optimization problems. The DE-GM(1,1) prediction model of ultimate bearing capacity of single pile was established through the way that using DE optimize the GM (1,1) parameters directly. The DE solution program was compiled in MATLAB, and then application of DE-GM(1,1) in prediction of ultimate bearing capacity of single pile was given. The results show that, compared with GM(1,1) model, the DE-GM(1,1) model fit the measured data better and predict more accuracy, furthermore, DE is a high effective algorithm with good properties such as high efficiency, high precision, fast computing speed and universality, etc.