The PSO-Gompertz Model Study for Single Pile Capacity Prediction
Yongli Du · Highway Engineering · 2012
According to the biological growth law,the Gompertz function model was used to the forecast of single-pile ultimate load after the load transmission mechanism of piles was analyzed,the Particle Swarm Optimization for parameter estimation of the model was provided,the prediction effects of PSO-Gompertz model and double common forecast models were compared with each other based on case-study.The results show that the growth process of pile bearing capacity usually experience the stages of begin,development,maturity and saturation;the load-settlement(Q-s) curve of piles under static load can be described by the Gompertz function;PSO-Gompertz model works better than the hyperbola and index ones in the forecast of single-pile ultimate load.