Bao, Y.; Zheng, Y.; Tang, C.; Meng, X.; Sun, Z.; Zhang, D.; Wang, L. Lateral Convergence Deformation Prediction of Subway Shield Tunnel Based on Kalman Model. Sustainability2024, 16, 2798.
Bao, Y.; Zheng, Y.; Tang, C.; Meng, X.; Sun, Z.; Zhang, D.; Wang, L. Lateral Convergence Deformation Prediction of Subway Shield Tunnel Based on Kalman Model. Sustainability 2024, 16, 2798.
Bao, Y.; Zheng, Y.; Tang, C.; Meng, X.; Sun, Z.; Zhang, D.; Wang, L. Lateral Convergence Deformation Prediction of Subway Shield Tunnel Based on Kalman Model. Sustainability2024, 16, 2798.
Bao, Y.; Zheng, Y.; Tang, C.; Meng, X.; Sun, Z.; Zhang, D.; Wang, L. Lateral Convergence Deformation Prediction of Subway Shield Tunnel Based on Kalman Model. Sustainability 2024, 16, 2798.
Abstract
In order to master the structure state of subway shield tunnel, reduce the diseases and avoid the potential safety hazards, the lateral convergence deformation of subway shield tunnels should be predicted. For the non-stationarity small sample size of subway shield tunnel lateral convergence deformation value, the existing prediction models have poor performance in terms of accuracy and stability. In this paper, a lateral convergence model of subway shield tunnel based on Kalman algorithm is constructed based on Kalman filtering theory. The model is efficient, adaptive and robust, and can accurately predict the lateral convergence deformation of subway shield tunnel. Taking the horizontal diameter of 200 rings shield segment in the interval section of a subway tunnel as an example, it is proved that the residuals of the Kalman prediction model are small, the residual distribution conforms to the normal distribution, and the prediction effect is great. The model is suitable for the prediction of more than 5 periods of data, and the prediction accuracy of the model is improved with the increase of the number of data periods. In addition, the Kalman model is compared with GM(1,1) model and GM-Markov model, and RMSE and MAPE are introduced as evaluation indexes. The results show that the Kalman model has higher prediction accuracy and is more suitable for predicting the lateral convergence deformation of subway shield tunnel.
Keywords
shield tunnel; lateral convergence deformation; Kalman model
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
