Nonlinear Analysis on Single Pile by Meshfree Local Petrov-Garlerkin Method (MLPG)

摘要

The Meshfree Local Petrov-Garlerkin Method (MLPG) was introduced to study the behavior of extra-long and large-diameter piles. The nonlinear behavior of the soil and pile shaft materials was firstly analyzed, based on these, the solving steps of MLPG was put forward involving the elastic-plastic model of soil and pile shaft reinforcement. Then a testing example was analyzed in contrast to the Finite Element Method (FEM), and the results indicated that the MLPG was of higher accuracy. Lastly, the MLPG was applied to analyze the data of static test on a full scale extra-long pile to study the behavior of pile.