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将组合预测方法用于岩土工程位移时间序列预测.结合实际观测数据,分别建立位移时间序列预测的GM(1,1)模型、Verhulst模型和趋势曲线模型.采用极小误差法确定各单一模型的权重,建立组合预测模型.应用表明,组合预测的精度高,为岩土工程位移预测提供了一种实用、可靠的方法.
The combined forecasting method is applied to predict geotechnical engineering displacement time series.Combined with the actual observation data, GM (1,1) model, Verhulst model and trend curve model are established respectively for prediction of displacement time series.The minimum error method is used to determine each single model , And establishes the combined forecasting model.The application shows that the combined forecasting accuracy is high and provides a practical and reliable method for predicting the displacement of geotechnical engineering.