Study on Prediction of Bearing Capacity of CFG Pile Composite Foundation with ANFIS

XUE Xin-hua; WEI Yong-xing

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Journal of Railway Engineering Society ›› 2010, Vol. 27 ›› Issue (6) : 42-47.

Study on Prediction of Bearing Capacity of CFG Pile Composite Foundation with ANFIS

XUE Xin-hua,WEI Yong-xing

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Abstract

Research purposes：The main factors influencing the bearing capacity of CFG pile composite foundation are the parameters of CFG pile; replacement rate, physical mechanical characteristics of soil, cushion thickness and construction technique, and the various factors mentioned above have highly complex non-linear relationship, so it is rather difficult to determine the bearing capacity of CFG pile composite foundation. To reasonably and accurately predict the CFG pile composite foundation's bearing capacity, the adaptive-network based on fuzzy inference system was proposed.

Research conclusions：The theory of adaptive-network-based fuzzy inference systems (ANFIS) was introduced and subtractive cluster method was applied to deciding fuzzy inference rules. After that, an ANFIS was used to predict the bearing capacity of CFG pile composite foundation. The predicted results show that the adaptive fuzzy neural network has higher accuracy and adaptability than the BP network and least squares support vector machines LS-SVM model, and it provides a new approach to predict the bearing capacity of CFG pile composite foundation.

Key words

CFG pile composite foundation / bearing capacity / adaptive-network-based fuzzy inference systems / least squares support vector machine

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XUE Xin-hua, WEI Yong-xing. Study on Prediction of Bearing Capacity of CFG Pile Composite Foundation with ANFIS[J]. Journal of Railway Engineering Society, 2010, 27(6): 42-47

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