The Surface Subsidence Prediction of Shield Construction Based on the Fuzzy Neural Network
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There are many factors that influence the surface subsidence caused by shield construction, which make it difficult to predict the subsidence using the mechanical models. The fuzzy neural network proves to be good at dealing with nonlinear and fuzzy problems and can well establish the nonlinear relationship between influence factors and surface subsidence. In order to improve predicting the tunneling-induced surface settlement, the fuzzy neural network is adopted. The model gives a consideration to the tunneling boring machine (TBM) geometric size, stratum mechanical properties and construction parameters. Compared with the predicted results of BP neural network in Nanchang subway, Adaptive Network-based Fuzzy Inference System (ANFIS) has a higher accuracy in the prediction. The model of ANFIS can be applied to the similar projects to guide the construction of tunnel and guarantee the safety of surface constructions.
KeywordsUpper-soft lower-hard stratum Prediction of surface subsidence Tunneling-induced subsidence ANFIS
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