Research and Analysis on Settlement Deformation Prediction Method of High-Speed Railway
In order to reduce the influence of external environment on the traditional GM(1,1)model in deformation prediction and improve the accuracy of settlement deformation prediction,a new weighted GM(1,1)model is proposed based on the traditional GM(1,1)model,which combines relative error and time distance to weight the original sequence.At the same time,the new metabolic concept is introduced,and a new weighted GM(1,1)model is proposed.The model proposed in this paper is applied to the predic-tion of the deformation monitoring data of the complex high-speed railway,and the prediction effect of different models is compared.The experimental results show that the proposed model has higher fitting and prediction accuracy than the traditional GM(1,1)model and weighted GM(1,1)model,and is more suitable for predicting complex deformation monitoring sequences.It is of great signifi-cance for settlement monitoring of high-speed railways and ensuring the safe and orderly operation of high-speed railways.
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