静压PHC管桩单桩极限承载力的灰色预测

Grey Prediction of Ultimate Bearing Capacity of Single Pile With Static Pressure PHC Pipe Pile

通过分析单桩承载力确定存在的问题与不足,结合灰色GM(1,1)模型的特点,根据实际观测资料运用灰色GM(1,1)模型预测了单桩承载力与沉降的关系。利用模型预测了单桩极限承载力,预测结果与实际观测具有较好的符合性,根据本文结果表明,灰色预测具有较好的工程应用意义值得推广应用。

The problems and shortcomings of single pile bearing capacity determination are analyzed based on the characteristics of grey GM(1, 1) model. The relationship between bearing capacity and settlement of single pile is predicted by using grey GM(1, 1) model.The model is used to predict the ultimate bearing capacity of a single pile, and the prediction results are in good agreement with the actual observations. According to the results, the grey prediction has a good engineering application meaning and is worth popularizing.