A prediction method of ground surface settlement in shield construction based on BIM and RS-SVR

The invention discloses a prediction method of ground surface settlement in shield construction based on BIM and RS-SVR, including: decision table is reduced based on Pawlak attribute importance degree in rough set theory, optimal attribute set is obtained with maximum influence on ground settlement degree, thus eliminating redundant data, simplifying dimension of model input parameters and savingcalculation time of model; At the same time, based on the excellent regression ability of support vector regression to small sample, the ground surface subsidence prediction model is established andtrained to obtain the best kernel function, which improves the prediction accuracy and enhances the interpretation ability of the model. Finally, combining the model with BIM technology, it can be used as a functional module of subway construction risk management and control platform based on BIM, which can visually display the risk degree of surface subsidence, facilitate the tracking of the development of risk, supervise