Deformation Prediction Method of Deep Foundation Pit Support Structure Based On GA-BP

Aiming at the low prediction quantile of the traditional deformation prediction method of deep foundation pit support structure, a deformation prediction method of deep foundation pit support structure based on GA-BP is designed. Through the field measured deformation information of deep foundation pit retaining structure, the deformation element grid of deep foundation pit retaining structure is divided, the time fractal characteristics of deep foundation pit retaining structure deformation structure are analyzed, and the deformation prediction mapping error of deep foundation pit retaining structure is calculated based on the training data of GA-BP algorithm, so as to realize the deformation prediction of deep foundation pit retaining structure. The experimental results show that the fractal dimension of the designed prediction method is significantly higher than that of the control group, which can solve the problem of low prediction quantile of the traditional deformation prediction method of deep foundation pit support structure.