Application of GM(1,1) Model in Surface Settlement Prediction in the Maglev Protected Area

During the comprehensive technical monitoring and protection in the Maglev protected area, settlement deformation prediction has been extremely important. On the background of the comprehensive technical monitoring and protection for the Shanghai Maglev line in the crossing of metro line 13, this thesis has introduced the principle and method of the grey prediction model GM(1,1) and has set up a GM(1,1) model in surface settlement prediction in the crossing. Meanwhile, the accuracy of different dimension models has been analyzed and a high precision prediction model has been finally attained. In addition, through comparison with the measured monitoring data, it has been proved that the established prediction model can meet the actual needs of the project.